REVOLVING CREDIT

                                    AGREEMENT

                            Dated as of July 18, 2000

                                     between

                          HELIX TECHNOLOGY CORPORATION

                                       and

                               FLEET NATIONAL BANK





                                TABLE OF CONTENTS

1.   DEFINITIONS AND RULES OF INTERPRETATION.................................1
         1.1.   Definitions..................................................1
         1.2.   Rules of Interpretation......................................16
2.   THE REVOLVING CREDIT FACILITY...........................................17
         2.1.   Commitment to Lend...........................................17
         2.2.   Commitment Fee...............................................17
         2.3.   Reduction of Total Commitment................................17
         2.4.   The Revolving Credit Notes...................................18
         2.5.   Interest on Revolving Credit Loans...........................18
         2.6.   Requests for Revolving Credit Loans..........................18
         2.7.   Conversion Options...........................................19
                  2.7.1.   Conversion to Different Type of Revolving
                           Credit Loan.......................................19
                  2.7.2.   Continuation of Type of Revolving Credit Loan.....19
                  2.7.3.   LIBOR Rate Loans..................................19
3.   REPAYMENT OF THE REVOLVING CREDIT LOANS.................................20
         3.1.   Maturity.....................................................20
         3.2.   Mandatory Repayments of Revolving Credit Loans...............20
                  3.2.1.   Revolving Credit Loans Exceed Commitment..........20
                  3.2.2.   Asset Sales.......................................20
         3.3.   Optional Repayments of Revolving Credit Loans................20
4.   LETTERS OF CREDIT.......................................................21
         4.1.   Letter of Credit Commitments.................................21
                  4.1.1.   Commitment to Issue Letters of Credit.............21
                  4.1.2.   Letter of Credit Applications.....................21
                  4.1.3.   Terms of Letters of Credit........................21
         4.2.   Reimbursement Obligation of the Borrower.....................21
         4.3.   Letter of Credit Payments....................................22
         4.4.   Obligations Absolute.........................................22
         4.5.   Reliance by Issuer...........................................23
         4.6.   Letter of Credit Fee.........................................23
         4.7.   Reimbursements Funded by Revolving Credit Loans..............23
5.   CERTAIN GENERAL PROVISIONS..............................................23
         5.1.   Closing Fee..................................................23
         5.2.   Funds for Payments...........................................23
                  5.2.1.   Payments to Bank..................................23
                  5.2.2.   No Offset, etc....................................24
         5.3.   Computations.................................................24
         5.4.   Inability to Determine LIBOR Rate............................24
         5.5.   Illegality...................................................25
         5.6.   Additional Costs, etc........................................25
         5.7.   Capital Adequacy.............................................26
         5.8.   Certificate..................................................27
         5.9.   Indemnity....................................................27



         5.10.   Interest After Default......................................27
                  5.10.1.   Overdue Amounts..................................27
                  5.10.2.   Amounts Not Overdue..............................27
6.   REPRESENTATIONS AND WARRANTIES..........................................28
         6.1.   Corporate Authority..........................................28
                  6.1.1.   Incorporation; Good Standing......................28
                  6.1.2.   Authorization.....................................28
                  6.1.3.   Enforceability....................................28
         6.2.   Governmental Approvals.......................................28
         6.3.   Title to Properties; Leases..................................29
         6.4.   Financial Statements; Projections and Solvency...............29
                  6.4.1.   Fiscal Year.......................................29
                  6.4.2.   Financial Statements..............................29
                  6.4.3.   Projections.......................................29
                  6.4.4.   Solvency..........................................30
         6.5.   No Material Changes, etc.....................................30
         6.6.   Franchises, Patents, Copyrights, etc.........................30
         6.7.   Litigation...................................................30
         6.8.   No Materially Adverse Contracts, etc.........................30
         6.9.   Compliance with Other Instruments, Laws, etc.................31
         6.10.   Tax Status..................................................31
         6.11.   No Event of Default.........................................31
         6.12.   Holding Company and Investment Company Acts.................31
         6.13.   Absence of Financing Statements, etc........................31
         6.14.   Certain Transactions........................................31
         6.15.   Employee Benefit Plans......................................32
                  6.15.1.   In General.......................................32
                  6.15.2.   Terminability of Welfare Plans...................32
                  6.15.3.   Guaranteed Pension Plans.........................32
                  6.15.4.   Multiemployer Plans..............................33
         6.16.   Use of Proceeds.............................................33
                  6.16.1.   General..........................................33
                  6.16.2.   Regulations U and X..............................33
                  6.16.3.   Ineligible Securities............................33
         6.17.   Environmental Compliance....................................33
         6.18.   Subsidiaries, etc...........................................35
         6.19.   Chief Executive Office......................................35
         6.20.   Capitalization Documents....................................36
         6.21.   Insurance...................................................36
         6.22.   Disclosure..................................................36
7.   AFFIRMATIVE COVENANTS OF THE BORROWER...................................36
         7.1.   Punctual Payment.............................................36
         7.2.   Maintenance of Office........................................36
         7.3.   Records and Accounts.........................................37
         7.4.   Financial Statements, Certificates and Information...........37
         7.5.   Notices......................................................38



                  7.5.1.   Defaults..........................................38
                  7.5.2.   Environmental Events..............................38
                  7.5.3.   Notification of Claim against Property............39
                  7.5.4.   Notice of Litigation and Judgments................39
         7.6.   Corporate Existence; Maintenance of Properties...............39
         7.7.   Insurance....................................................40
         7.8.   Taxes........................................................40
         7.9.   Inspection of Properties and Books, etc......................40
                  7.9.1.   General...........................................40
                  7.9.2.   Appraisals........................................40
                  7.9.3.   Communications with Accountants...................41
         7.10.   Compliance with Laws, Contracts, Licenses, and Permits......41
         7.11.   Employee Benefit Plans......................................41
         7.12.   Use of Proceeds.............................................41
         7.13.   Replacement Instruments.....................................42
         7.14.   New Guarantors..............................................42
         7.15.   Further Assurances..........................................42
         7.16.   Ownership of Guarantors.....................................42
         7.17.   Inactive Subsidiaries.......................................42
8.   CERTAIN NEGATIVE COVENANTS OF THE BORROWER..............................43
         8.1.   Restrictions on Indebtedness.................................43
         8.2.   Restrictions on Liens........................................44
         8.3.   Restrictions on Investments..................................46
         8.4.   Restricted Payments..........................................47
         8.5.   Merger, Consolidation and Disposition of Assets..............48
                  8.5.1.   Mergers and Acquisitions..........................48
                  8.5.2.   Disposition of Assets.............................49
         8.6.   Sale and Leaseback...........................................49
         8.7.   Compliance with Environmental Laws...........................49
         8.8.   Employee Benefit Plans.......................................49
         8.9.   Business Activities..........................................50
         8.10.   Fiscal Year.................................................50
         8.11.   Transactions with Affiliates................................50
         8.12.   Upstream Limitations........................................50
         8.13.   Inconsistent Agreements.....................................51
         8.14.   Modification of Capitalization Documents....................51
         8.15.   Negative Pledge.............................................51
9.   FINANCIAL COVENANTS OF THE BORROWER.....................................51
         9.1.   Leverage Ratio...............................................51
         9.2.   Quick Ratio..................................................51
         9.3.   Profitable Operations........................................51
10.   CLOSING CONDITIONS.....................................................52
         10.1.   Loan Documents..............................................52
         10.2.   Certified Copies of Charter Documents.......................52
         10.3.   Corporate Action............................................52
         10.4.   Incumbency Certificate......................................52



         10.5.    UCC Search Results.........................................52
         10.6.   Certificates of Insurance...................................52
         10.7.   Opinion of Counsel..........................................53
         10.8.   Payment of Fees.............................................53
         10.9.   No Material Adverse Change..................................53
         10.10.   Compliance Certificate.....................................53
         10.11.   Proceedings and Documents..................................53
11.   CONDITIONS TO ALL BORROWINGS...........................................53
         11.1.   Representations True; No Event of Default...................53
         11.2.   No Legal Impediment.........................................54
         11.3.   Governmental Regulation.....................................54
12.   EVENTS OF DEFAULT; ACCELERATION; ETC...................................54
         12.1.   Events of Default and Acceleration..........................54
         12.2.   Termination of Commitments..................................57
         12.3.   Remedies....................................................57
13.   SETOFF.................................................................58
14.   EXPENSES AND INDEMNIFICATION...........................................58
         14.1.   Expenses....................................................58
         14.2.   Indemnification.............................................58
         14.3.   Survival....................................................59
15.   TREATMENT OF CERTAIN CONFIDENTIAL INFORMATION..........................59
         15.1.   Confidentiality.............................................59
         15.2.   Prior Notification..........................................60
         15.3.   Other.......................................................60
16.   SURVIVAL OF COVENANTS, ETC.............................................60
17.   ASSIGNMENT AND PARTICIPATION...........................................60
         17.1.   Assignment by Bank..........................................60
         17.2.   Participation by Bank.......................................61
         17.3.   Assignment by Borrower......................................62
18.   NOTICES, ETC...........................................................62
19.   GOVERNING LAW..........................................................62
20.   HEADINGS...............................................................63
21.   COUNTERPARTS...........................................................63
22.   ENTIRE AGREEMENT, ETC..................................................63
23.   WAIVER OF JURY TRIAL...................................................63
24.   CONSENTS, AMENDMENTS, WAIVERS, ETC.....................................64
25.   USURY..................................................................64
26.   SEVERABILITY...........................................................64






                             Exhibits and Schedules

Exhibit A                  Form of Revolving Credit Note
Exhibit B                  Form of Loan Request
Exhibit C                  Form of Compliance Certificate
Exhibit D                  Investment Policy

Schedule 6.1.1             Foreign Qualification Exceptions
Schedule 6.3               Title to Properties
Schedule 6.7               Litigation
Schedule 6.17              Environmental Compliance
Schedule 6.18              Subsidiaries, Joint Ventures
Schedule 6.21              Insurance
Schedule 8.1               Indebtedness
Schedule 8.2               Liens
Schedule 8.3               Investments
Schedule 8.15              Restrictions on Granting Liens








                           REVOLVING CREDIT AGREEMENT

         This  REVOLVING  CREDIT  AGREEMENT is made as of July 18, 2000,  by and
among HELIX TECHNOLOGY  CORPORATION  (the  "Borrower"),  a Delaware  corporation
having  its  principal  place of  business  at 9  Hampshire  Street,  Mansfield,
Massachusetts  02048,  and FLEET NATIONAL BANK, a national  banking  association
(the "Bank").

                   1. DEFINITIONS AND RULES OF INTERPRETATION.

         1.1.  Definitions.

         The  following   terms   shall   have  the  meanings  set forth in this
Section 1 or elsewhere in the  provisions of this Credit  Agreement  referred to
below:

         Accounts  Receivable.  All  rights  of  the  Borrower  or  any  of  its
Subsidiaries  to payment for goods  sold,  leased or  otherwise  marketed in the
ordinary  course  of  business  and all  rights  of the  Borrower  or any of its
Subsidiaries to payment for services rendered in the ordinary course of business
and all sums of money or other  proceeds  due thereon  pursuant to  transactions
with  account  debtors,  except  for that  portion  of the sum of money or other
proceeds due thereon that relate to sales,  use or property taxes in conjunction
with  such  transactions,  recorded  on  books of  account  in  accordance  with
generally accepted accounting principles.

         Adjustment  Date.  The  first day of  the month  immediately  following
the month in which a Compliance  Certificate  is to be delivered by the Borrower
pursuant to Section 7.4(c).

         Affiliate.  Any Person that would be  considered  to be an affiliate of
the Borrower  under Rule 144(a) of the Rules and  Regulations  of the Securities
and Exchange  Commission,  as in effect on the date hereof, if the Borrower were
issuing securities.

         Applicable  Margin.  For each period  commencing on an Adjustment  Date
through the date  immediately  preceding the next  Adjustment Date (each a "Rate
Adjustment  Period"),  the Applicable  Margin shall be the applicable margin set
forth below with respect to the Borrower's  Leverage Ratio, as determined at the
end of the fiscal quarter of the Borrower and its Subsidiaries ended immediately
prior to the applicable Rate Adjustment Period.


                                  Base Rate  LIBOR Rate    Credit   Commitment
   Level     Leverage Ratio         Loans      Loans        Fees       Fees
  ------- ----------------------- --------- -----------  --------  -----------

  I       Greater than 0.75:1.00     0.50%     1.50%      1.50%    0.500%

  ------- ----------------------- --------- -----------  --------  -----------

  II      Equal to or less than      0.25%     1.25%      1.25%    0.375%
          0.75:1.00 but greater
          than 0.50:1.00

  ------- ----------------------- --------- -----------  --------  -----------

  III     Less than or equal to      0.25%     1.25%      1.25%    0.300%
                0.50:1.00

  ------- ----------------------- --------- -----------  --------  -----------


         Notwithstanding  the  foregoing,  if the Borrower  fails to deliver any
Compliance  Certificate  pursuant to Section  7.4(c) hereof then, for the period
commencing on the Adjustment  Date to occur  subsequent to such failure  through
the date immediately following the date on which such Compliance  Certificate is
delivered,  the  Applicable  Margin shall be the highest  Applicable  Margin set
forth above.

         Asset  Sale.  Any one or series of  related  transactions  in which any
Person  conveys,   sells,  transfers  or  otherwise  disposes  of,  directly  or
indirectly,  any of its properties,  businesses or assets (including the sale or
issuance of capital  stock of any  Subsidiary  other than to the Borrower or any
Subsidiary) whether owned on the Closing Date or thereafter acquired, excluding,
however, in each case, any Excluded Disposition.

         Balance Sheet Date.  December 31, 1999.

         Bank.  As defined in the preamble hereto.

         Bank's Office. The Bank's office located at 100 Federal Street, Boston,
Massachusetts  02110,  or at such other  location as the Bank may designate from
time to time.

         Bank's Special Counsel.  Bingham Dana  LLP or such other counsel as may
be approved by the Bank.

         Base Rate.  The higher of (a) the  variable  annual rate of interest so
designated  from time to time by the Bank as its "prime rate," such rate being a
reference rate and not  necessarily  representing  the lowest or best rate being
charged to any  customer,  and (b)  one-half  of one  percent  (1/2%)  above the
Federal Funds  Effective  Rate.  For the purposes of this  definition,  "Federal
Funds  Effective  Rate" shall mean for any day,  the rate per annum equal to the
weighted  average of the rates on  overnight  federal  funds  transactions  with
members of the Federal  Reserve  System  arranged by federal funds  brokers,  as
published  for such day (or,  if such day is not a  Business  Day,  for the next
preceding  Business  Day) by the Federal  Reserve Bank of New York,  or, if such
rate is not so published  for any day that is a Business Day, the average of the
quotations  for such day on such  transactions  received  by the Bank from three
funds brokers of recognized  standing selected by the Bank.  Changes in the Base
Rate  resulting  from any  changes  in Bank's  "prime  rate"  shall  take  place
immediately without notice or demand of any kind.

         Base Rate Loans.  Revolving Credit Loans bearing interest calculated by
reference to the Base Rate.

         Borrower.  As defined in the preamble hereto.

         Business  Day.  Any  day  on  which  banking  institutions  in  Boston,
Massachusetts, are open for the transaction of banking business and, in the case
of LIBOR Rate Loans, also a day which is a LIBOR Business Day.



         Capitalization   Documents.   Collectively,   the  formation  documents
(including, without limitation, any certificate of incorporation and by-laws) of
the Borrower and its Subsidiaries.

         Capitalized  Leases.  Leases  under  which the  Borrower  or any of its
Subsidiaries  is the lessee or obligor,  the  discounted  future rental  payment
obligations  under which are required to be  capitalized on the balance sheet of
the  lessee  or  obligor  in  accordance  with  generally  accepted   accounting
principles.

         Cash Equivalents.  As  to  the   Borrower  and  its  Subsidiaries,  any
investment made in accordance with the Investment Policy.

         CERCLA.  See Section 6.17(a).

         Closing Date. The  first  date  on  which  the  conditions set forth in
Section 10 have been  satisfied and any Revolving  Credit Loans are available to
be made or any Letter of Credit is available to be issued hereunder.

         Code.  The Internal Revenue Code of 1986.

         Commitment.  The obligation of the Bank to make Revolving  Credit Loans
to, and to issue,  extend and renew  Letters of Credit for the  account  of, the
Borrower up to an aggregate outstanding principal amount of $25,000,000, as such
amount may be reduced from time to time or terminated hereunder.

         Commitment  Fee  Rate.  The  applicable rate per annum set forth in the
chart  contained in the  definition  of  "Applicable  Margin"  under the heading
"Commitment Fees".

         Compliance Certificate.  See Section 7.4(c).

         Consolidated  or  consolidated.  With  reference  to any  term  defined
herein,  shall mean that term as applied to the accounts of the Borrower and its
Subsidiaries,  consolidated  in accordance  with generally  accepted  accounting
principles.

         Consolidated   Current   Liabilities.   All   liabilities   and   other
Indebtedness  of the  Borrower  and its  Subsidiaries  on a  consolidated  basis
maturing on demand or within one (1) year from the date as of which Consolidated
Current  Liabilities  are to be  determined,  and such other  liabilities as may
properly be  classified as current  liabilities  in  accordance  with  generally
accepted accounting  principles other than Indebtedness of the type described in
clause  (i) of the  definition  of the term  "Indebtedness"  and  including  all
outstanding  Revolving Credit Loans,  Unpaid  Reimbursement  Obligations and the
Maximum Drawing Amount of all issued and outstanding Letters of Credit,  whether
or not so  classified  but  excluding  therefrom  any  liabilities  agreed to in
writing by the Bank and the Borrower from time to time, provided for purposes of
calculating  liabilities  of the Borrower under  Revolving  Credit Loans for any
date of determination,


the amount shall be the average  daily  outstanding  amount of Revolving  Credit
Loans  for  the  immediately  preceding  ninety  (90)  days  from  such  date of
determination.

         Consolidated  Intangible  Assets. The total book value of all assets of
the  Borrower  and its  Subsidiaries  (determined  on a  consolidated  basis  in
accordance with generally accepted accounting principles) properly classified as
intangible under generally accepted accounting principles,  including such items
as good will, the purchase price of acquired assets in excess of the fair market
value thereof, trademarks, trade names, services marks, brand names, copyrights,
patents and licenses, and rights with respect to the foregoing.

         Consolidated PreTax Income. For any period,  consolidated income of the
Borrower  and its  Subsidiaries  before  taxes,  as reported by the  Borrower in
accordance  with  generally  accepted  accounting   principles;   provided  that
following a Permitted Acquisition, the Consolidated PreTax Income for the fiscal
quarter  in which  such  Permitted  Acquisition  occurred  and each of the three
fiscal  quarters  immediately  following  such  Permitted  Acquisition  shall be
calculated  with reference to the audited  historical  financial  results of the
Person so acquired (or, to the extent such financial results are unaudited, such
unaudited  results  shall have been  prepared in a manner which is acceptable to
the Bank) and the Borrower and its Subsidiaries for the applicable  period after
giving effect on a pro forma basis to such  Permitted  Acquisition  and assuming
that such Permitted  Acquisition  had been  consummated at the beginning of such
period with such  adjustments  which are attributable to the change in ownership
and/or management resulting from such Permitted Acquisition as are acceptable to
the Bank.

         Consolidated  Quick Assets.  All cash,  Cash  Equivalents  and Accounts
Receivable of the Borrower and its Subsidiaries on a consolidated basis that, in
accordance  with  generally  accepted   accounting   principles,   are  properly
classified as current assets,  provided that Accounts  Receivable shall be taken
at their face value less reserves determined to be sufficient in accordance with
generally accepted accounting principles.

         Consolidated  Tangible Net Worth. (a) At any time of determination when
the  amount  of  Consolidated  Intangible  Assets  is  equal  to  or  less  than
$1,000,000,  the excess of  Consolidated  Total Assets over  Consolidated  Total
Liabilities.

         (b) At any  time of  determination  when  the  amount  of  Consolidated
Intangible Assets is greater than $1,000,000,  the excess of Consolidated  Total
Assets over Consolidated Total Liabilities,  and less, without duplication,  the
sum of:

                  (i)      the amount of Consolidated Intangible Assets; plus

                  (ii) all amounts  representing  any write-up in the book value
         of any assets of the  Borrower  or its  Subsidiaries  resulting  from a
         revaluation thereof subsequent to the Balance Sheet Date, excluding (A)
         adjustments to translate  foreign assets and liabilities for changes in
         foreign  exchange rates made in accordance  with  Financial  Accounting
         Standards  Board  Statement No. 52 and (B)



         write-ups  of  assets  acquiredin  any Permitted  Acquisition  made in
         connection  with such  Permitted  Acquisition  (but  not any subsequent
         revaluations thereof); plus

                  (iii) to the extent otherwise includable in the computation of
         Consolidated Tangible Net Worth, any equity subscriptions receivable.

         Consolidated  Total  Assets.  The sum of (a) all assets  ("consolidated
balance  sheet  assets") of the Borrower and its  Subsidiaries  determined  on a
consolidated basis in accordance with generally accepted accounting  principles,
plus  (b)  without  duplication,  all  assets  leased  by  the  Borrower  or any
Subsidiary  as lessee under any  Synthetic  Lease to the extent that such assets
would have been  consolidated  balance sheet assets had the Synthetic Lease been
treated  for  accounting  purposes  as a  Capitalized  Lease,  plus (c)  without
duplication, all sold receivables referred to in clause (g) of the definition of
the term  "Indebtedness"  to the extent  that such  receivables  would have been
consolidated balance sheet assets had they not been sold.

         Consolidated Total Liabilities. All liabilities of the Borrower and its
Subsidiaries  determined on a  consolidated  basis in accordance  with generally
accepted  accounting  principles  and  classified  as such  on the  consolidated
balance sheet of the Borrower and its Subsidiaries and all other Indebtedness of
the  Borrower  and its  Subsidiaries,  whether or not so  classified  other than
Indebtedness  of the type  described in clause (i) of the definition of the term
"Indebtedness".

         Conversion  Request.  A notice  given by the  Borrower  to  the Bank of
the  Borrower's  election  to convert or  continue a  Revolving  Credit  Loan in
accordance with Section 2.7.

         Credit Agreement.  This  Revolving  Credit  Agreement,  including   the
Schedules and Exhibits hereto.

         Default.  See Section 12.1.

         Distribution.  The  declaration  or  payment of any  dividend  on or in
respect  of any  shares  of any  class of  capital  stock of the  Borrower;  the
purchase,  redemption, or other retirement of any shares of any class of capital
stock of the  Borrower,  directly  or  indirectly  through a  Subsidiary  of the
Borrower or otherwise; the return of capital by the Borrower to its shareholders
as such; or any other  distribution  on or in respect of any shares of any class
of capital  stock of the  Borrower,  in each case other than  dividends  payable
solely in shares of common stock of the Borrower.

         Dollars  or $.  Dollars  in lawful  currency  of the  United  States of
America.

         Domestic Lending Office.  Initially,  the office of the Bank designated
as such by notice to the Borrower; thereafter, such other office of the Bank, if
any,  located within the United States that will be making or  maintaining  Base
Rate Loans.



         Domestic  Subsidiary.  Any  Subsidiary of  the  Borrower  other  than a
Foreign Subsidiary.

         Drawdown Date.  The date on which any Revolving  Credit Loan is made or
is to be made,  and the date on which any Revolving  Credit Loan is converted or
continued in accordance with Section 2.7.

         Employee  Benefit Plan. Any employee benefit plan within the meaning of
Section 3(3) of ERISA  maintained or contributed to by the Borrower or any ERISA
Affiliate, other than a Guaranteed Pension Plan or a Multiemployer Plan.

         Environmental Laws.  See Section 6.17(a).

         EPA.  See Section 6.17(b).

         ERISA.  The Employee Retirement Income Security Act of 1974.

         ERISA Affiliate.  Any Person which is treated as a single employer with
the Borrower under Section 414 of the Code.

         ERISA Reportable Event. A reportable event with respect to a Guaranteed
Pension  Plan  within the meaning of Section  4043 of ERISA and the  regulations
promulgated thereunder.

         Eurocurrency  Reserve  Rate.  For any day with  respect to a LIBOR Rate
Loan,  the maximum  rate  (expressed  as a decimal) at which any lender  subject
thereto would be required to maintain  reserves under  Regulation D of the Board
of  Governors  of the  Federal  Reserve  System  (or any  successor  or  similar
regulations  relating  to  such  reserve   requirements)  against  "Eurocurrency
Liabilities"  (as that term is used in Regulation D), if such  liabilities  were
outstanding.  The Eurocurrency  Reserve Rate shall be adjusted  automatically on
and as of the effective date of any change in the Eurocurrency Reserve Rate.

         Event of Default.  See Section 12.1.

         Excluded  Disposition.  Any of the  following:  (a) the  acquisition or
lease of or the sale,  lease or other  disposition  of  assets  in the  ordinary
course  of  business  consistent  with  past  practices,  (b) the  sale or other
disposition  of  obsolete  or worn-out  property,  (c) the sale,  lease or other
disposition of assets by the Borrower to any Guarantor,  by any Guarantor to the
Borrower or by any  Guarantor  to any other  Guarantor,  (d) the sale,  lease or
other  disposition  of assets by any  Subsidiary of the Borrower  which is not a
Guarantor to any other Subsidiary of the Borrower which is not a Guarantor,  (e)
the sale or discount  without  recourse of  Accounts  Receivable  arising in the
ordinary  course of business in  connection  with the  compromise  or collection
thereof and not in connection with any financing transaction, provided, that, in
the case of any Foreign Subsidiary,  this clause (e) shall also include any sale
or discount of Accounts  Receivable  made with  recourse to such  Subsidiary  if
effected  in the  ordinary  course of  business  and if such sale



or discount is consistent with customary practices in such Foreign  Subsidiary's
country of business and such sale or discount is otherwise  permitted under this
Credit  Agreement,  (f) licenses of patents,  trademarks and other  intellectual
property  rights  granted  by the  Borrower  or any of its  Subsidiaries  in the
ordinary course of business, (g) the subsequent sale or other disposition in the
ordinary course of business of any Investment  permitted by Section 8.3(a),  (h)
to the extent it would be  considered  an Asset  Sale,  any  Restricted  Payment
permitted  by Section  8.4, (i) leases or subleases of assets of the Borrower or
any  Subsidiary  granted  to  third  parties  by  the  Borrower  or  any  of its
Subsidiaries in the ordinary  course of business,  and (j) so long as no Default
or Event of Default shall have occurred and be continuing, the conveyance, sale,
lease,  transfer or other disposition of any properties or assets (other than as
set forth in clauses (a) through (i) of this  definition)  resulting  in no more
than  $3,000,000  in  aggregate  proceeds in any fiscal year.  For  avoidance of
doubt,  the Borrower  and the Bank agree that only the  proceeds  referred to in
clause  (j)  hereof  which are in  excess of  $3,000,000  shall  constitute  the
proceeds of Asset Sales;  the  Borrower  shall be entitled to retain the initial
$3,000,000  of such  proceeds  ,  whether  such  proceeds  are a  result  of one
transaction or a series of transactions.

         Foreign  Subsidiary.  Any  Subsidiary  of  the  Borrower organized in a
jurisdiction other than the United States of America,  any state thereof, or the
District of Columbia.

         Generally    accepted   accounting   principles.  (a)  When   used   in
Section 9, whether  directly or  indirectly  through  reference to a capitalized
term used therein,  means (i) principles that are consistent with the principles
promulgated  or  adopted by the  Financial  Accounting  Standards  Board and its
predecessors, in effect for the fiscal year ended on the Balance Sheet Date, and
(ii) to the extent consistent with such principles,  the accounting  practice of
the Borrower  reflected in its  financial  statements  for the year ended on the
Balance Sheet Date, and (b) when used in general,  other than as provided above,
means  principles  that are (i) consistent  with the  principles  promulgated or
adopted by the Financial Accounting Standards Board and its predecessors,  as in
effect from time to time,  and (ii)  consistently  applied  with past  financial
statements of the Borrower  adopting the same principles,  provided that in each
case  referred  to  in  this  definition  of  "generally   accepted   accounting
principles"  a certified  public  accountant  would,  insofar as the use of such
accounting  principles is pertinent,  be in a position to deliver an unqualified
opinion  (other than a  qualification  regarding  changes in generally  accepted
accounting  principles) as to financial statements in which such principles have
been properly applied.

         Guaranteed  Pension Plan. Any employee  pension benefit plan within the
meaning of Section 3(2) of ERISA maintained or contributed to by the Borrower or
any ERISA  Affiliate the benefits of which are guaranteed on termination in full
or in part by the PBGC pursuant to Title IV of ERISA, other than a Multiemployer
Plan.

         Guarantors.  Collectively, each wholly-owned Domestic Subsidiary of the
Borrower  existing on the Closing Date other than the Inactive  Subsidiaries and
each other  Person  which is required  to be or become a guarantor  from time to
time  pursuant to Section 7.14 hereof.  Each such Person shall be a party to the
Guaranty.



         Guaranty. Collectively, each Guaranty, dated or to be dated on or prior
to the Closing  Date or such later date as is required by Section  7.14  hereof,
made by each Guarantor in favor of the Bank pursuant to which each wholly-owned,
Domestic  Subsidiary  of the  Borrower  (other than the  Inactive  Subsidiaries)
guaranties to the Bank the payment and  performance  of the  Obligations  and in
form and substance satisfactory to the Bank.

         Hazardous Substances.  See Section 6.17(b).

         Inactive  Subsidiaries.  Collectively,  CTI  Nuclear  Inc.,   an   Ohio
corporation,   Strathmore  Corporation,   an  Ohio  corporation  and  Cyrogenics
Technology Inc., a Delaware corporation.

         Indebtedness.  As to any Person and, subject to clause (G) of the final
paragraph  of this  definition,  whether  recourse is secured by or is otherwise
available against all or only a portion of the assets of such Person and whether
or not contingent, but without duplication:

                  (a) every obligation of such Person for money borrowed,

                  (b) every  obligation  of such  Person  evidenced  by  bonds,
         debentures,  notes or other similar instruments,  including obligations
         incurred in  connection  with the  acquisition  of property,  assets or
         businesses,

                  (c) every reimbursement obligation of such Person with respect
         to letters of credit, bankers' acceptances or similar facilities issued
         for the account of such Person,

                  (d) every  obligation  of such Person issued or assumed as the
         deferred purchase price of property or services  (including  securities
         repurchase  agreements but excluding trade accounts  payable or accrued
         expenses  arising in the ordinary course of business which are not more
         than  thirty  (30) days  overdue or which are being  contested  in good
         faith),

                  (e) every  obligation  of  such  Person  under any Capitalized
         Lease,

                  (f) every  obligation  of  such  Person  under  any  lease  (a
         "synthetic  lease")  treated  as  an  operating  lease  under generally
         accepted  accounting  principles  and  as  a loan or financing for U.S.
         income tax purposes,

                  (g) all  sales  by such  Person  of (i)  accounts  or  general
         intangibles  for  money  due or to  become  due,  (ii)  chattel  paper,
         instruments  or documents  creating or evidencing a right to payment of
         money or (iii) other receivables (collectively "receivables"),  whether
         pursuant  to a  purchase  facility  or  otherwise,  other  than  (x) in
         connection  with the  disposition  of the business  operations  of such
         Person relating  thereto or a disposition of defaulted  receivables for
         collection  and not as a financing  arrangement,  and together with any
         obligation  of  such  Person  to  pay  any  discount,  interest,  fees,
         indemnities, penalties,


         recourse,   expenses   or  other  amounts  in connection  therewith  or
         (y) a  disposition  of   receivables,  with or without  recourse,  by a
         Foreign  Subsidiary in   the ordinary  course of business to the extent
         such  disposition  is   consistent  with  customary  practices  in such
         Foreign Subsidiary's country of business,

                  (h)  every  obligation  of such  Person  (an  "equity  related
         purchase obligation") to purchase,  redeem, retire or otherwise acquire
         for  value  any  shares of  capital  stock of any class  issued by such
         Person,  any  warrants,  options or other  rights to  acquire  any such
         shares,  or any rights measured by the value of such shares,  warrants,
         options or other  rights,  provided  that any equity  related  purchase
         obligation  arising  when the  Borrower  reduces  the  number  of stock
         options of an employee at the time such  employee  exercises  its stock
         options  pursuant to any Stock  Option Plan and agrees to  subsequently
         pay the  employee's  taxes  resulting  from such exercise  shall not be
         deemed an equity  related  purchase  obligation  until such time as the
         Borrower makes such reduction,  and excluding,  however,  in each case,
         (i) any  obligation  of such  Person  to  purchase,  redeem,  retire or
         otherwise acquire any of the foregoing from present or former officers,
         directors  or employees  of such Person upon the death,  disability  or
         termination  of employment  of any such  officer,  director or employee
         pursuant to any of the Stock Option  Plans and (ii) any equity  related
         purchase  obligations which do not require any purchases,  redemptions,
         retirement  or other  acquisition  for value prior to the date on which
         all  Revolving  Credit Loans have been  indefeasibly  repaid in full in
         cash, all issued and outstanding Letters of Credit have been terminated
         or  returned  to the Bank and  cancelled  and the  Commitment  has been
         permanently reduced to zero,

                  (i)  every   obligation  of  such  Person  under  any  forward
         contract,  futures contract,  swap, option or other financing agreement
         or arrangement  (including,  without limitation,  caps, floors, collars
         and similar agreements),  the value of which is dependent upon interest
         rates,  currency  exchange  rates,  commodities  or  other  indices  (a
         "derivative contract"),

                  (j) every  obligation in respect of  Indebtedness of any other
         entity  (including  any  partnership  in which such Person is a general
         partner) to the extent that such Person is liable  therefor as a result
         of such Person's  ownership interest in or other relationship with such
         entity,  except  to the  extent  that the  terms  of such  Indebtedness
         provide  that such  Person is not  liable  therefor  and such terms are
         enforceable under applicable law,

                  (k) every obligation,  contingent or otherwise, of such Person
         guarantying,  or having the economic effect of guarantying or otherwise
         acting as surety for,  any  obligation  of a type  described  in any of
         clauses (a) through (k) (the "primary  obligation")  of another  Person
         (the "primary obligor"), in any manner, whether directly or indirectly,
         and including, without limitation, any obligation of such Person (i) to
         purchase or pay (or advance or supply  funds for the  purchase  of) any
         security for the payment of such primary  obligation,  (ii) to purchase
         property,  securities  or  services  for the  purpose of  assuring  the
         payment



         of  such   primary   obligation,  or   (iii) to    maintain     working
         capital,  equity  capital or other  financial  statement  condition  or
         liquidity of the primary obligor so as to enable the primary obligor to
         pay such primary obligation;  provided,  however,  that endorsements of
         instruments  for  deposit  or  collection  in the  ordinary  course  of
         business  shall be excluded  from this clause (k) and shall in no event
         be deemed to  constitute  "Indebtedness"  for  purposes  of this Credit
         Agreement.

         The "amount" or "principal  amount" of any  Indebtedness at any time of
determination  represented  by (A) any  Indebtedness,  issued at a price that is
less than the principal amount at maturity  thereof,  shall be the amount of the
liability in respect thereof  determined in accordance  with generally  accepted
accounting  principles,  (B)  any  Capitalized  Lease  shall  be  the  principal
component of the net present  value  (calculated  using a discount rate equal to
the interest rate implicit in such  transaction) of the aggregate of the rentals
obligation  under such  Capitalized  Lease payable over the term thereof that is
not subject to termination by the lessee,  (C) any sale of receivables  shall be
the amount of  unrecovered  capital or  principal  investment  of the  purchaser
(other  than the  Borrower  or any of its  wholly-owned  Subsidiaries)  thereof,
excluding amounts representative of yield or interest earned on such investment,
(D) any synthetic lease shall be the stipulated loss value, termination value or
other equivalent amount, (E) any derivative contract shall be the maximum amount
of any  termination  or loss payment  required to be paid by such Person if such
derivative  contract  were,  at the time of  determination,  to be terminated by
reason of any event of default or early termination event thereunder, whether or
not such event of default or early termination  event has in fact occurred,  (F)
any equity related purchase  obligation shall be the maximum fixed redemption or
purchase  price  thereof  inclusive  of any accrued and unpaid  dividends  to be
comprised in such  redemption or purchase price and (G) any  Indebtedness  as to
which recourse is secured by or is otherwise available against only a portion of
the  assets of a Person  shall be deemed to be limited to the lesser of the fair
market  value  of  such  portion  of  such  assets  and  the  principal   amount
outstanding,  if such Person has not assumed or become liable for the payment of
such Indebtedness.

         Ineligible  Securities.  Securities  which may not be  underwritten  or
dealt in by member banks of the Federal  Reserve  System under Section 16 of the
Banking Act of 1933 (12 U.S.C. Section 24, Seventh), as amended.

         Interest  Payment Date.  (a) As to any Base Rate Loan,  the last day of
the  calendar  quarter  with respect to interest  accrued  during such  calendar
quarter, including,  without limitation, the calendar quarter which includes the
Drawdown  Date of such Base  Rate  Loan;  and (b) as to any  LIBOR  Rate Loan in
respect of which the  Interest  Period is (i) 3 months or less,  the last day of
such Interest Period and (ii) more than 3 months, the date that is 3 months from
the first day of such  Interest  Period and, in  addition,  the last day of such
Interest Period.

         Interest  Period.  With  respect to each  Revolving  Credit  Loan,  (a)
initially,  the period  commencing on the Drawdown Date of such Revolving Credit
Loan and  ending  on the last day of one of the  periods  set  forth  below,  as
selected by the Borrower in a Loan Request or as otherwise required by the terms
of this  Credit  Agreement  (i) for any



Base Rate Loan,  the last day of the  calendar  quarter;  and (ii) for any LIBOR
Rate Loan, 1, 2, 3 or 6 months;  and (b) thereafter,  each period  commencing on
the last day of the next preceding  Interest Period applicable to such Revolving
Credit Loan and ending on the last day of one of the periods set forth above, as
selected  by the  Borrower in a  Conversion  Request;  provided  that all of the
foregoing provisions relating to Interest Periods are subject to the following:

                  (A) if any  Interest  Period with respect to a LIBOR Rate Loan
         would  otherwise  end on a day that is not a LIBOR  Business  Day, that
         Interest Period shall be extended to the next succeeding LIBOR Business
         Day unless the result of such extension would be to carry such Interest
         Period into another calendar month, in which event such Interest Period
         shall end on the immediately preceding LIBOR Business Day;

                  (B) if any  Interest  Period with  respect to a Base Rate Loan
         would end on a day that is not a Business  Day,  that  Interest  Period
         shall end on the next succeeding Business Day;

                  (C) if the  Borrower  shall fail to give notice as provided in
         Section 2.7,  the  Borrower  shall  be  deemed  to  have  requested   a
         conversion  of the affected LIBOR Rate Loan to a Base Rate Loan and the
         continuance of all  Base  Rate  Loans as Base  Rate  Loans on the  last
         day of the then current Interest Period with respect thereto;

                  (D) any Interest  Period  relating to any LIBOR Rate Loan that
         begins on the last LIBOR  Business Day of a calendar month (or on a day
         for which there is no  numerically  corresponding  day in the  calendar
         month at the end of such  Interest  Period) shall end on the last LIBOR
         Business Day of a calendar month; and

                  (E) any Interest Period that would otherwise extend beyond the
         Maturity Date shall end on the Maturity Date.

         International Standby Practices.  With respect to any standby Letter of
Credit,  International  Standby  Practices  (ISP98),  International  Chamber  of
Commerce  Publication No. 590, or any successor code of standby letter of credit
practices among banks adopted by the Bank in the ordinary course of its business
as a standby  letter of credit  issuer and in effect at the time of  issuance of
such Letter of Credit.

         Investments.   All  expenditures  made  and  all  liabilities  incurred
(contingently  or otherwise) by any Person (i) for the  acquisition  of stock or
Indebtedness   of  any  other  Person,   (ii)  for  loans,   advances,   capital
contributions  or transfers of property to any other  Person,  but excluding any
such  loan or  advance  arising  in  connection  with the sale of  inventory  or
supplies or the  provision of services by such Person in the ordinary  course of
business,  or (iii) in  respect  of any  guaranties  (or  other  commitments  as
described  under  clause  (k)  of  the  definition  of  "Indebtedness")  of  the
obligations of any Person, but excluding endorsements of instruments for deposit
or collection in the



ordinary course of business.  In determining the aggregate amount of Investments
outstanding at any particular time: (a) the amount of any Investment represented
by a guaranty shall,  subject to any  limitations on the  guarantor's  liability
expressly  set  forth  in such  guaranty,  be taken  at an  amount  equal to the
principal amount of the obligations guaranteed and still outstanding;  (b) there
shall be deducted in respect of each such  Investment  any amount  received as a
return of capital (but only by repurchase,  redemption,  retirement,  repayment,
liquidating  dividend  or  liquidating  distribution);  (c)  there  shall not be
deducted in respect of any Investment nor shall there be added to any Investment
any  amounts  received as earnings  on such  Investment,  whether as  dividends,
interest or  otherwise;  and (d) there shall not be deducted  from the aggregate
amount of  Investments  any decrease in the value thereof and there shall not be
added to the aggregate  amount of Investments any increase in the value thereof.
For the  avoidance of doubt,  Capital  Expenditures  made by the Borrower or any
Subsidiary  shall not be considered  an  Investment  for purposes of this Credit
Agreement.

         Investment  Policy.  The  investment   policy  of  the Borrower and its
Subsidiaries in effect as of the date hereof as set forth on Exhibit D hereto.

         Japanese Joint  Venture.  Ulvac   Cryogenics,   Inc., a  joint  venture
between the Borrower and Ulvac Corporation of Chigasaki, Japan.

         Joint Venture. A corporation,  partnership,  limited liability company,
joint venture or other similar legal arrangement (whether created by contract or
conducted  through a  separate  legal  entity)  now or  hereafter  formed by the
Borrower or any of its Subsidiaries with another Person (other than the Borrower
or a Subsidiary  of the Borrower) in order to conduct a common  enterprise  with
such Person.  In no event will any  Subsidiary of the Borrower be deemed to be a
Joint Venture for purposes of this Credit Agreement.

         Letter of Credit.  See Section 4.1.1.

         Letter of Credit Application.  See Section 4.1.1.

         Letter of Credit Fee.  See Section 4.6.

         Letter of Credit Fee Rate. The  applicable  rate per annum set forth in
the chart  contained in the definition of "Applicable  Margin" under the heading
"Letter of Credit Fees".

         Leverage  Ratio.  As of any  date of  determination,  the  ratio of (a)
Consolidated Total Liabilities of the Borrower and its Subsidiaries  outstanding
on such date to (b)  Consolidated  Tangible  Net Worth of the  Borrower  and its
Subsidiaries as of such date.

         LIBOR  Business  Day.  Any day on which  commercial  banks are open for
international business (including dealings in Dollar deposits) in London or such
other  eurodollar  interbank  market as may be  selected by the Bank in its sole
discretion acting in good faith.



         LIBOR Lending Office.  Initially,  the office of the Bank designated as
such by notice to the  Borrower;  thereafter,  such other office of the Bank, if
any, that shall be making or maintaining LIBOR Rate Loans.

         LIBOR Rate. For any Interest  Period with respect to a LIBOR Rate Loan,
the  rate of  interest  equal to (i) the  rate  determined  by the Bank at which
Dollar  deposits  for such  Interest  Period are  offered  based on  information
presented on Telerate Page 3750 as of 11:00 a.m. London time on the second LIBOR
Business Day prior to the first day of such Interest  Period,  divided by (ii) a
number equal to 1.00 minus the Eurocurrency Reserve Rate, if applicable.

         LIBOR Rate Loans. Revolving Credit Loans bearing interest calculated by
reference to the LIBOR Rate.

         Loan  Documents.  This Credit  Agreement,  the  Revolving  Credit Note,
the Letter of Credit Applications and the Letters of Credit.

         Loan Request.  See Section 2.6.

         Material Adverse Effect. A material adverse effect on (a) the business,
properties,  condition (financial or otherwise), assets, operations or income of
the  Borrower  and the  Guarantors,  taken as a whole,  (b) the  ability  of the
Borrower and the Guarantors taken as a whole, to perform any of their respective
Obligations  under the Loan  Documents or (c) the  validity,  binding  effect or
enforceability of this Credit Agreement or any of the other Loan Documents.

         Maturity Date.  July 18, 2003[April __, 2003].

         Maximum  Drawing  Amount.   The  maximum   aggregate  amount  that  the
beneficiaries may at any time draw under outstanding  Letters of Credit, as such
aggregate  amount may be reduced from time to time  pursuant to the terms of the
Letters of Credit.

         Multiemployer  Plan.  Any   multiemployer  plan  within the  meaning of
Section 3(37) of ERISA maintained or contributed to by the Borrower or any ERISA
Affiliate.

         Net Cash Sale Proceeds.  The net cash proceeds  received by a Person in
respect  of any Asset  Sale,  less the sum of (a) all  reasonable  out-of-pocket
fees,  commissions and other reasonable and customary expenses actually incurred
in connection with such Asset Sale,  including the amount of income,  franchise,
sales  and  other  applicable  taxes  required  to be  paid by  such  Person  in
connection  with  such  Asset  Sale,  and (b) the  aggregate  amount  of cash so
received  by such  Person  which is  required  to be used to retire or repay (in
whole or in part) any Indebtedness (other than under the Loan Documents) of such
Person permitted by this Credit Agreement that was secured by a lien or security
interest  permitted  by this  Credit  Agreement  with  respect  to  such  assets
transferred and which is required to be repaid in whole or in part in connection
with such Asset Sale.



         Obligations.  All  indebtedness,  obligations and liabilities of any of
the Borrower and its  Subsidiaries to the Bank,  individually  or  collectively,
existing on the date of this Credit Agreement or arising  thereafter,  direct or
indirect,  joint or  several,  absolute  or  contingent,  matured or  unmatured,
liquidated or unliquidated, secured or unsecured, arising by contract, operation
of law or  otherwise,  in each case,  arising  or  incurred  under  this  Credit
Agreement  or any of the other Loan  Documents or in respect of any of the Loans
made or Reimbursement  Obligations incurred or the Revolving Credit Note, Letter
of  Credit  Application,  Letter  of  Credit  or other  instruments  at any time
evidencing any thereof.

         Outstanding.  With   respect  to  the   Revolving   Credit  Loans,  the
aggregate unpaid principal thereof as of any date of determination.

         PBGC.  The  Pension  Benefit  Guaranty  Corporation  created by Section
4002  of  ERISA  and  any   successor   entity  or   entities   having   similar
responsibilities.

         Permitted Acquisition.  See Section 8.5.1.

         Permitted Liens.  Liens,  security  interests  and  other  encumbrances
permitted by Section 8.2.

         Person. Any individual, corporation, partnership, trust, unincorporated
association,  business,  or  other  legal  entity,  and  any  government  or any
governmental agency or political subdivision thereof.

         Principal Officers.  The Chief Executive Officer of the Borrower and/or
the Chief Financial Officer of the Borrower, and, to the extent at any time both
such positions are vacant, then all the officers of the Borrower.

         RCRA.  See Section 6.17(a).

         Real  Estate.  All  real  property  at  any time  owned or  leased  (as
lessee or sublessee) by the Borrower or any of its Subsidiaries.

         Record.   The  grid  attached  to  a  Revolving  Credit  Note,  or  the
continuation  of such grid,  or any other  similar  record,  including  computer
records,  maintained  by the Bank with  respect  to any  Revolving  Credit  Loan
referred to in such Revolving Credit Note.

         Reimbursement  Obligation.  The Borrower's obligation to reimburse  the
Bank on account of any drawing under any Letter of Credit as provided in Section
4.2.

         Restricted  Payment.  In relation to the Borrower and its Subsidiaries,
any (a)  Distribution,  or (b)  payment or  prepayment  by the  Borrower  or its
Subsidiaries to the Borrower's or any Subsidiary's shareholders (or other equity
holders) exceeding, in the aggregate, $250,000 and (i) consisting of management,
consulting or similar fees other than those fees incurred in the ordinary course
of business  consistent with past practices



and fees charged for a fair exchange of services or sale or other disposition of
goods in the ordinary  course of business for fair and  reasonable  value,  (ii)
consisting  of any fees or other  payments  made outside the ordinary  course of
business or (iii) made to such Person in its capacity as shareholder  other than
for a fair  exchange of services  or sale or other  disposition  of goods in the
ordinary  course of  business  for fair and  reasonable  value or (c) payment or
prepayment by the Borrower or its  Subsidiaries to any Affiliate of the Borrower
or any  Subsidiary,  excluding  payments made by the Borrower or a Subsidiary of
the Borrower to a Foreign  Subsidiary or by a Foreign Subsidiary to the Borrower
or a Subsidiary  which is not otherwise  prohibited by this Credit Agreement and
made as a result of the Borrower's or such Subsidiary's ordinary course dealings
with Foreign  Subsidiaries  conducted in a manner consistent with past practices
(or, with respect to Foreign  Subsidiaries created or acquired after the Closing
Date, consistent with the Borrower's foreign operations as of the Closing Date).

         Revolving Credit Loans.  Revolving  credit loans  made or to be made by
the Bank to the Borrower pursuant to Section 2.

         Revolving Credit Note Record.  A  Record  with   respect to a Revolving
Credit Note.

         Revolving Credit Note.  See Section 2.4.

         SARA.  See Section 6.17(a).

         Section  20  Subsidiary.  A  Subsidiary  of the  bank  holding  company
controlling the Bank, which Subsidiary has been granted authority by the Federal
Reserve Board to underwrite and deal in certain Ineligible Securities.

         S&P.  Standard & Poor's Ratings Group.

         Stock Option Plans. Collectively,  the Borrower's Employee Stock Option
Plan dated as of April 24, 1996, and the  Borrower's  1996 Stock Option Plan for
Non-Employee Directors dated as of April 24, 1996, each in the form delivered to
the Bank on or prior to the Closing Date and as amended from time to time.

         Subsidiary.  Any  corporation,  association,  trust,  or other business
entity  of which  the  designated  parent  shall at any  time  own  directly  or
indirectly  through a Subsidiary or  Subsidiaries at least a majority (by number
of votes) of the outstanding Voting Stock.

         Synthetic Lease.  As  defined  in   clause  (f) of  the  definition  of
"Indebtedness".

         Temporary Lien.  See Section 8.2(xi).

         Type.  As to any Revolving Credit Loan, its nature as a  Base Rate Loan
or a LIBOR Rate Loan.

         Uniform  Customs.  With  respect to any Letter of Credit,  the  Uniform
Customs and Practice for  Documentary  Credits  (1993  Revision),  International
Chamber of



Commerce  Publication  No. 500 or any successor  version  thereto adopted by the
Bank in the ordinary  course of its business as a letter of credit issuer and in
effect at the time of issuance of such Letter of Credit.

         Unpaid  Reimbursement  Obligation.  Any  Reimbursement  Obligation  for
which the Borrower does not reimburse the Bank on the date  specified in, and in
accordance with, Section 4.2.

         Voting  Stock.  Stock or  similar  interests,  of any class or  classes
(however  designated),  the holders of which are at the time  entitled,  as such
holders,  to vote for the  election of a majority of the  directors  (or persons
performing  similar functions) of the corporation,  association,  trust or other
business entity  involved,  whether or not the right so to vote exists by reason
of the happening of a contingency.

         1.2.  Rules of Interpretation.

                  (a) A reference  to any document or  agreement  shall  include
         such document or agreement as amended,  modified or  supplemented  from
         time to time in accordance  with its terms and the terms of this Credit
         Agreement.

                  (b) The  singular  includes the plural and the plural includes
         the singular.

                  (c) A   reference   to   any   law  includes  any amendment or
         modification to such law.

                  (d) A   reference   to   any  Person  includes  its  permitted
         successors and permitted assigns.

                  (e) Accounting  terms  not otherwise  defined  herein have the
         meanings assigned to them by generally accepted  accounting  principles
         applied on a consistent  basis by the  accounting  entity to which they
         refer.

                  (f) The  words  "include", "includes"  and "including" are not
         limiting.

                  (g) All terms not specifically  defined herein or by generally
         accepted accounting principles,  which terms are defined in the Uniform
         Commercial Code as in effect in the Commonwealth of Massachusetts, have
         the meanings assigned to them therein, with the term "instrument" being
         that defined under Article 9 of the Uniform Commercial Code.

                  (h) Reference to a particular "Section" refers to that section
         of this Credit Agreement unless otherwise indicated.

                  (i) The words  "herein",  "hereof",  "hereunder"  and words of
         like import shall refer to this Credit  Agreement as a whole and not to
         any particular section or subdivision of this Credit Agreement.



                  (j) Unless otherwise expressly  indicated,  in the computation
         of periods of time from a specified date to a later specified date, the
         word "from" means "from and including," the words "to" and "until" each
         mean  "to  but  excluding,"  and  the  word  "through"  means  "to  and
         including."

                  (k) This Credit Agreement and the other Loan Documents may use
         several  different  limitations,  tests or measurements to regulate the
         same or similar matters.  All such limitations,  tests and measurements
         are, however, cumulative and are to be performed in accordance with the
         terms thereof.

                  (l) This Credit Agreement and the other Loan Documents are the
         result of  negotiation  among,  and have been  reviewed  by counsel to,
         among  others,  the  Bank  and the  Borrower  and are  the  product  of
         discussions  and  negotiations  among all  parties.  Accordingly,  this
         Credit  Agreement  and the other Loan  Documents are not intended to be
         construed against the Bank merely on account of the Bank's  involvement
         in the preparation of such documents.

                        2. THE REVOLVING CREDIT FACILITY.

         2.1.  Commitment to Lend.

         Subject to the terms and conditions set forth in this Credit Agreement,
the Bank  severally  agrees to lend to the Borrower and the Borrower may borrow,
repay,  and  reborrow  from  time to time  from the  Closing  Date up to but not
including  the  Maturity  Date upon notice by the  Borrower to the Bank given in
accordance  with Section 2.6, such sums as are requested by the Borrower up to a
maximum  aggregate  amount  outstanding  (after  giving  effect  to all  amounts
requested) at any one time equal to the Commitment  minus the sum of the Maximum
Drawing  Amount and all Unpaid  Reimbursement  Obligations.  Each  request for a
Revolving Credit Loan hereunder shall  constitute a representation  and warranty
by the Borrower that the  conditions  set forth in Section 10 and Section 11, in
the case of the initial  Revolving  Credit Loans to be made on the Closing Date,
and  Section  11, in the case of all other  Revolving  Credit  Loans,  have been
satisfied on the date of such request.

         2.2.  Commitment Fee.

         The Borrower  agrees to pay to the Bank a commitment  fee calculated at
the rate of the Commitment Fee Rate per annum on the average daily amount during
each  calendar  quarter or portion  thereof from the date hereof to the Maturity
Date by which the Commitment minus the sum of the Maximum Drawing Amount and all
Unpaid  Reimbursement  Obligations  exceeds the outstanding  amount of Revolving
Credit Loans during such calendar  quarter.  The commitment fee shall be payable
quarterly  in  arrears  on the  first  day of  each  calendar  quarter  for  the
immediately  preceding  calendar  quarter  commencing  on the  first  such  date
following  the date hereof,  with a final  payment on the  Maturity  Date or any
earlier date on which the Commitment shall terminate.

         2.3.  Reduction of Total Commitment.

         The  Borrower  shall  have the  right at any time and from time to time
upon  five (5)  Business  Days  prior  written  notice  to the Bank to reduce by
$500,000 or an integral  multiple thereof or terminate  entirely the Commitment.
Upon the effective date of any such reduction or termination, the



Borrower  shall  pay to the Bank  the full  amount  of any  commitment  fee then
accrued on the amount of the  reduction.  No  reduction  or  termination  of the
Commitment may be reinstated.

         2.4.  The Revolving Credit Notes.

         The Revolving  Credit Loans shall be evidenced by a promissory  note of
the  Borrower  in  substantially  the form of Exhibit A hereto  (the  "Revolving
Credit  Note"),  dated as of the Closing  Date and  completed  with  appropriate
insertions.  The Revolving Credit Note shall be payable to the order of the Bank
in a  principal  amount  equal  to  the  Bank's  Commitment  or,  if  less,  the
outstanding amount of all Revolving Credit Loans made by the Bank, plus interest
accrued  thereon,  as set forth below. The Borrower  irrevocably  authorizes the
Bank to make or cause to be made,  at or about the time of the Drawdown  Date of
any Revolving  Credit Loan or at the time of receipt of any payment of principal
on the Bank's  Revolving  Credit  Note,  an  appropriate  notation on the Bank's
Revolving Credit Note Record reflecting the making of such Revolving Credit Loan
or (as the case may be) the receipt of such payment.  The outstanding  amount of
the Revolving  Credit Loans set forth on the Bank's Revolving Credit Note Record
shall be prima facie  evidence of the principal  amount thereof owing and unpaid
to the Bank, but the failure to record,  or any error in so recording,  any such
amount on the Bank's  Revolving  Credit Note Record shall not limit or otherwise
affect the obligations of the Borrower  hereunder or under the Revolving  Credit
Note to make payments of principal of or interest on the  Revolving  Credit Note
when due.

         2.5.  Interest on Revolving Credit Loans.

         Except as otherwise provided in Section 5.10,

                  (a) Each Base Rate Loan  shall  bear  interest  for the period
         commencing with the Drawdown Date thereof and ending on the last day of
         the Interest Period with respect thereto at the rate per annum equal to
         the Base Rate plus the Applicable Margin.

                  (b) Each LIBOR Rate Loan  shall bear  interest  for the period
         commencing with the Drawdown Date thereof and ending on the last day of
         the Interest Period with respect thereto at the rate per annum equal to
         the LIBOR Rate  determined for such Interest Period plus the Applicable
         Margin.

                  (c) The Borrower  promises to pay  interest on each  Revolving
         Credit  Loan in  arrears on each  Interest  Payment  Date with  respect
         thereto.

         2.6.  Requests for Revolving Credit Loans.

         The  Borrower  shall  give to the Bank  written  notice  in the form of
Exhibit B hereto (or  telephonic  notice  confirmed  in a writing in the form of
Exhibit B hereto) of each  Revolving  Credit Loan  requested  hereunder (a "Loan
Request")  no later than (a) 12:00 noon (Boston  time) on the proposed  Drawdown
Date of any Base Rate Loan and (b) three (3) LIBOR  Business  Days  prior to the
proposed  Drawdown  Date of any LIBOR Rate Loan.  Each such notice shall specify
(i) the  principal  amount of the  Revolving  Credit  Loan  requested,  (ii) the
proposed  Drawdown Date of such Revolving  Credit Loan, (ii) the Interest Period
for such Revolving  Credit Loan and (iv) the Type of such Revolving  Credit Loan
and shall be signed by both the  President  and Chief  Financial  Officer of the
Borrower. Each Loan



Request shall be irrevocable  and binding on the Borrower and shall obligate the
Borrower  to accept the  Revolving  Credit Loan  requested  from the Bank on the
proposed Drawdown Date. Each Loan Request shall be in a minimum aggregate amount
of $100,000 or an integral multiple thereof.

         2.7.  Conversion Options.

                  2.7.1.  Conversion to Different Type of Revolving Credit Loan.

                  The  Borrower  may  elect  from  time to time to  convert  any
         outstanding Revolving Credit Loan to a Revolving Credit Loan of another
         Type,  provided  that (a) with  respect  to any  such  conversion  of a
         Revolving  Credit Loan to a Base Rate Loan, the Borrower shall give the
         Bank at  least  one (1)  Business  Day  prior  written  notice  of such
         election;  (b) with respect to any such  conversion of a Base Rate Loan
         to a LIBOR Rate Loan,  the Borrower  shall give the Bank at least three
         (3) LIBOR Business Days prior written notice of such election; (c) with
         respect to any such  conversion  of a LIBOR Rate Loan into a  Revolving
         Credit Loan of another Type, such conversion  shall only be made on the
         last  day of the  Interest  Period  with  respect  thereto  and  (d) no
         Revolving  Credit Loan may be converted into a LIBOR Rate Loan when any
         Default or Event of Default has occurred and is continuing. On the date
         on which such  conversion is being made the Bank shall take such action
         as is necessary to transfer such Revolving Credit Loans to its Domestic
         Lending Office or its LIBOR Lending Office,  as the case may be. All or
         any  part of  outstanding  Revolving  Credit  Loans  of any Type may be
         converted  into a  Revolving  Credit  Loan of another  Type as provided
         herein,  provided that any partial  conversion shall be in an aggregate
         principal  amount  of  $1,000,000  or a whole  multiple  thereof.  Each
         Conversion  Request  relating to the  conversion of a Revolving  Credit
         Loan to a LIBOR Rate Loan shall be irrevocable by the Borrower.

                  2.7.2.  Continuation of Type of Revolving Credit Loan.

                  Any  Revolving  Credit Loan of any Type may be  continued as a
         Revolving  Credit  Loan of the  same  Type  upon the  expiration  of an
         Interest Period with respect thereto by compliance by the Borrower with
         the notice  provisions  contained in Section 2.7.1;  provided  that  no
         LIBOR Rate Loan may be continued as such when any Default  or  Event of
         Default has  occurred  and  is  continuing,  but shall be automatically
         converted to a Base Rate  Loan  on  the  last day of the first Interest
         Period relating thereto ending during the continuance of any Default or
         Event of Default  of which   officers   of  the  Bank  active  upon the
         Borrower's  account   have  actual  knowledge.  In  the  event that the
         Borrower  fails  to  provide  any  such  notice  with  respect  to  the
         continuation  of any LIBOR Rate Loan as such, then such LIBOR Rate Loan
         shall be  automatically converted  to a Base Rate  Loan on the last day
         of the first Interest Period relating thereto during which the Borrower
         has failed to give such notice.

                  2.7.3.  LIBOR Rate Loans.

                  Any  conversion  to or from LIBOR Rate Loans  shall be in such
         amounts and be made  pursuant to such  elections so that,  after giving
         effect thereto,  the aggregate principal amount of all LIBOR Rate Loans



         having the same Interest  Period shall not be less than $1,000,000 or a
         whole  multiple of $500,000.  In no event shall the Borrower  have more
         than five (5) LIBOR Rate Loans outstanding at any one time.

                   3. REPAYMENT OF THE REVOLVING CREDIT LOANS.

         3.1.  Maturity.

         The  Borrower  promises to pay on the  Maturity  Date,  and there shall
become  absolutely  due and payable on the Maturity  Date,  all of the Revolving
Credit Loans  outstanding  on such date,  together  with any and all accrued and
unpaid interest thereon.

         3.2.  Mandatory Repayments of Revolving Credit Loans.

                  3.2.1.  Revolving Credit Loans Exceed Commitment.

                  If at  any  time  the  sum of the  outstanding  amount  of the
         Revolving  Credit  Loans,  the  Maximum  Drawing  Amount and all Unpaid
         Reimbursement  Obligations  exceeds the  Commitment  then the  Borrower
         shall  immediately  pay the  amount  of such  excess  to the  Bank  for
         application: first, to any Unpaid Reimbursement Obligations; second, to
         the  Revolving  Credit  Loans;  and third,  to provide to the Bank cash
         collateral for  Reimbursement   Obligations  as contemplated by Section
         4.2(b) and (c).

                  3.2.2.  Asset Sales.

                  No later than two (2)  Business  Days after the receipt by the
         Borrower  or any of its  Subsidiaries  of Net Cash Sale  Proceeds  from
         Asset Sales,  the Borrower shall pay to the Bank an amount equal to one
         hundred percent (100%) of such Net Cash Sale Proceeds, to be applied to
         reduce the  outstanding  amount of the  Revolving  Credit  Loans and to
         permanently  reduce the  Commitment  by such amount;  provided that the
         Borrower may in its sole discretion elect, pursuant to a written notice
         given by the Borrower to the Bank describing such election, to postpone
         any mandatory  prepayment otherwise required to be made by the Borrower
         pursuant  to this  Section 3.2.2  (any  such  prepayments,  until   the
         time actually made, being "Postponed Payments") until  such time as the
         aggregate amount of Postponed Payments equals $100,000.

         3.3.  Optional Repayments of Revolving Credit Loans.

         The  Borrower  shall  have the  right,  at its  election,  to repay the
outstanding  amount of the Revolving Credit Loans, as a whole or in part, at any
time without penalty or premium,  except for any amounts payable by the Borrower
under  Section  5.9 in  respect  of any  payment of a LIBOR Rate Loan on any day
other than the last day of the applicable  Interest  Period.  The Borrower shall
give the Bank, no later than 12:00 noon,  Boston time, at least one (1) Business
Day prior written notice of any proposed prepayment pursuant to this Section 3.3
of Base Rate Loans,  and three (3) LIBOR  Business  Days notice of any  proposed
prepayment  pursuant  to this  Section  3.3 of LIBOR  Rate  Loans,  in each case
specifying  the proposed date of  prepayment  of Revolving  Credit Loans and the
principal  amount to be prepaid.  Each such partial  prepayment of the Revolving
Credit Loans shall be in an integral multiple of $100,000,  shall be accompanied
by the payment of accrued interest on the principal prepaid to the



date of prepayment  and shall be applied,  in the absence of  instruction by the
Borrower, first to the principal of Base Rate Loans and then to the principal of
LIBOR Rate Loans.

                              4. LETTERS OF CREDIT.

         4.1.  Letter of Credit Commitments.

                  4.1.1.  Commitment to Issue Letters of Credit.

                  Subject to the terms and  conditions  hereof and the execution
         and delivery by the Borrower of a letter of credit  application  on the
         Bank's customary form (a "Letter of Credit  Application"),  the Bank in
         reliance  upon  the  representations  and  warranties  of the  Borrower
         contained herein,  agrees to issue, extend and renew for the account of
         the  Borrower  or  any  Subsidiary  thereof  one  or  more  standby  or
         documentary letters of credit (individually,  a "Letter of Credit"), in
         such form as may be requested  from time to time by the Borrower or any
         Subsidiary thereof and agreed to by the Bank; provided,  however, that,
         after  giving  effect  to such  request,  (a) the sum of the  aggregate
         Maximum Drawing Amount and all Unpaid  Reimbursement  Obligations shall
         not  exceed  $10,000,000  at any  one  time  and (b) the sum of (i) the
         Maximum  Drawing  Amount on all  Letters  of  Credit,  (ii) all  Unpaid
         Reimbursement Obligations, and (iii) the amount of all Revolving Credit
         Loans outstanding shall not exceed the Commitment.

                  4.1.2.  Letter of Credit Applications.

                  Each Letter of Credit  Application  shall be  completed to the
         satisfaction of the Bank. In the event that any provision of any Letter
         of Credit  Application shall be inconsistent with any provision of this
         Credit  Agreement,  then the provisions of this Credit Agreement shall,
         to the extent of any such inconsistency, govern.

                  4.1.3.  Terms of Letters of Credit.

                  Each Letter of Credit  issued,  extended or renewed  hereunder
         shall,  among other things, (a) provide for the payment of sight drafts
         for  honor  thereunder  when  presented  in  accordance  with the terms
         thereof and when accompanied by the documents  described  therein,  and
         (b) have an expiry  date no later than the  earlier of (i) one (1) year
         from the date of  issuance  of such  Letter of Credit and (ii) the date
         which is seven (7) days (or, if the Letter of Credit is  confirmed by a
         confirmer or  otherwise  provides  for one or more  nominated  persons,
         thirty (30) days) prior to the Maturity Date.  Each Letter of Credit so
         issued, extended or renewed shall be subject to the Uniform Customs or,
         in the case of a standby Letter of Credit,  either the Uniform  Customs
         or the International Standby Practices.

         4.2.  Reimbursement Obligation of the Borrower.

         In order to induce the Bank to issue,  extend and renew each  Letter of
Credit,  the Borrower hereby agrees to reimburse or pay to the Bank with respect
to each Letter of Credit issued, extended or renewed by the Bank hereunder,

                  (a) except as otherwise  expressly  provided in Section 4.2(b)
         and (c) and Section 4.7, on each date that any draft presented under
         such Letter of Credit is honored by



         the Bank, or the Bank otherwise makes a payment with  respect  thereto,
         (i) the amount  paid by the Bank under or with respect  to such  Letter
         of  Credit,  and (ii) the  amount of any taxes (other  than  taxes   on
         the    net   income   of   the  Bank  or any of its Affiliates),  fees,
         charges  or other  costs and  expenses  whatsoever incurred by the Bank
         in  connection   with  any  payment  made  by  the  Bank under, or with
         respect to, such Letter of Credit,

                  (b) upon the reduction (but not termination) of the Commitment
         to an amount less than the Maximum Drawing  Amount,  an amount equal to
         such  difference,  which  amount  shall  be  held  by the  Bank as cash
         collateral for all Reimbursement Obligations, and

                  (c)  upon  the   termination   of  the   Commitment,   or  the
         acceleration  of the  Reimbursement  Obligations  with  respect  to all
         Letters of Credit in accordance with Section 12, an amount equal to the
         then  Maximum  Drawing  Amount  on  all Letters of Credit, which amount
         shall be held by the Bank  as  cash  collateral  for  all Reimbursement
         Obligations.

Each such payment shall be made to the Bank at the Bank's Office in  immediately
available  funds.  Interest  on any  and all  amounts  remaining  unpaid  by the
Borrower  under this Section 4.2 at any time from the date such  amounts  become
due and payable  (whether as stated in this  Section  4.2,  by  acceleration  or
otherwise)  until payment in full (whether  before or after  judgment)  shall be
payable to the Bank on demand at the rate  specified in Section 5.10 for overdue
principal on the Revolving Credit Loans.

         4.3.  Letter of Credit Payments.

         If any draft shall be presented  or other  demand for payment  shall be
made under any Letter of Credit,  the Bank shall notify the Borrower of the date
and amount of the draft presented or demand for payment and of the date and time
when it  expects  to pay such  draft or  honor  such  demand  for  payment.  The
responsibility  of the Bank to the Borrower  shall be only to determine that the
documents  (including  each  draft)  delivered  under  each  Letter of Credit in
connection with such presentment shall be in conformity in all material respects
with such Letter of Credit.

         4.4.  Obligations Absolute.

         The  Borrower's obligations under this Section 4 shall be absolute  and
unconditional under any and all circumstances and irrespective of the occurrence
of any Default or Event of Default or any condition precedent  whatsoever or any
setoff,  counterclaim  or defense to payment which the Borrower may have or have
had  against the Bank or any  beneficiary  of a Letter of Credit.  The  Borrower
further agrees with the Bank that the Bank shall not be responsible for, and the
Borrower's Reimbursement Obligations under Section 4.2 shall not be affected by,
among  other  things,  the  validity  or  genuineness  of  documents  or of  any
endorsements  thereon,  even if such documents should in fact prove to be in any
or all respects  invalid,  fraudulent or forged, or any dispute between or among
the  Borrower,  the  beneficiary  of any  Letter  of  Credit  or  any  financing
institution  or other party to which any Letter of Credit may be  transferred or
any claims or defenses whatsoever of the Borrower against the beneficiary of any
Letter of Credit or any such transferee. The Bank shall not be liable for any
error,



omission,  interruption  or delay in  transmission,  dispatch or delivery of any
message or advice, however transmitted, in connection with any Letter of Credit.
The  Borrower  agrees  that any action  taken or omitted by the Bank under or in
connection  with each Letter of Credit and the related drafts and documents,  if
done  in  good  faith  and  in the  absence  of  gross  negligence  and  willful
misconduct,  shall be  binding  upon the  Borrower  and shall not  result in any
liability on the part of the Bank to the Borrower.  Notwithstanding  anything to
the contrary  contained  in this Section 4.4, the Borrower  shall retain any and
all  rights  it may have  against  the Bank for any  liability  incurred  by the
Borrower arising out of the gross  negligence or willful  misconduct of the Bank
in respect of any Letter of Credit or any  payment  made or not made by the Bank
thereunder.

         4.5.  Reliance by Issuer.

         To the extent not inconsistent with Section 4.4,  the  Bank   shall  be
entitled to rely,  and shall be fully  protected in relying upon,  any Letter of
Credit, draft, writing,  resolution,  notice, consent,  certificate,  affidavit,
letter,  cablegram,  telegram,  telecopy, telex or teletype message,  statement,
order or other  document  believed  by it to be genuine  and correct and to have
been  signed,  sent or made by the proper  Person or Persons and upon advice and
statements of legal counsel,  independent accountants and other experts selected
by the Bank.

         4.6.  Letter of Credit Fee.

         The Borrower shall, on the date of issuance or any extension or renewal
of any Letter of Credit pay a fee (in each  case,  a "Letter of Credit  Fee") to
the Bank in respect of each Letter of Credit in an amount equal to the Letter of
Credit  Fee Rate per annum of the face  amount  of such  Letter  of  Credit.  In
respect of each  Letter of Credit,  the  Borrower  shall also pay to the Bank at
such other time or times as such charges are  customarily  made by the Bank, the
Bank's  reasonable and customary  issuance,  amendment,  negotiation or document
examination and other administrative fees as in effect from time to time.

         4.7.  Reimbursements Funded by Revolving Credit Loans.

         In the event  that the  Borrower  fails to  reimburse  the Bank for any
drawing  presented  under a Letter of Credit and honored by the Bank by the time
required  under  Section 4.2, the Borrower  shall be deemed to have given to the
Bank a timely Loan Request for a Base Rate Loan in  accordance  with Section 2.6
and, subject to the satisfaction of the conditions  specified in Section 11, the
Bank  shall make such a  Revolving  Credit  Loan in the  amount of such  drawing
honored by the Bank under such Letter of Credit and shall apply the  proceeds of
such Revolving Credit Loan directly to reimburse itself for the amount thereof.

                         5. CERTAIN GENERAL PROVISIONS.

         5.1.  Closing Fee.

         The  Borrower  agrees to pay to the Bank on the Closing  Date a closing
fee in the amount of $50,000.00.

         5.2.  Funds for Payments.

                  5.2.1.  Payments to Bank.

                  All   payments   of   principal,    interest,    Reimbursement
         Obligations,  commitment  fees,  Letter  of  Credit  Fees and any other
         amounts  due  hereunder  or under any of the other Loan Documents shall



         be made on the due date thereof to the Bank in  Dollars  at the  Bank's
         Office  or at such  other  place  that the  Bank may from  time to time
         designate, in each case at or about 11:00 a.m. (Boston,  Massachusetts,
         time or other  local time at the place of payment)  and in  immediately
         available funds.

                  5.2.2.  No Offset, etc.

                  All  payments by the Borrower  hereunder  and under any of the
         other  Loan  Documents  shall be made  without  recoupment,  setoff  or
         counterclaim and free and clear of and without deduction for any taxes,
         levies,  imposts,  duties,  charges,  fees,  deductions,  withholdings,
         compulsory  loans,  restrictions  or  conditions  of any  nature now or
         hereafter  imposed  or  levied  by any  jurisdiction  or any  political
         subdivision  thereof or taxing or other  authority  therein  unless the
         Borrower is compelled by law to make such deduction or withholding.  If
         any such  obligation  is imposed upon the Borrower  with respect to any
         amount  payable  by it  hereunder  or  under  any  of  the  other  Loan
         Documents,  the Borrower will pay to the Bank on the date on which such
         amount is due and payable  hereunder or under such other Loan Document,
         such  additional  amount in Dollars as shall be necessary to enable the
         Bank to receive the same net amount which the Bank would have  received
         on such due date had no such obligation been imposed upon the Borrower.
         The Borrower will deliver  promptly to the Bank  certificates  or other
         valid  vouchers for all taxes or other  charges  deducted  from or paid
         with respect to payments  made by the Borrower  hereunder or under such
         other Loan Document.

         5.3.  Computations.

         All  computations  of  interest  on Base Rate Loans shall be based on a
365-day year and paid for the actual number of days elapsed. All computations of
interest on LIBOR Rate Loans,  and of  commitment  fees or Letter of Credit Fees
shall be based on a 360-day year and paid for the actual number of days elapsed.
Except as otherwise  provided in the  definition of the term  "Interest  Period"
with respect to LIBOR Rate Loans,  whenever a payment  hereunder or under any of
the other Loan  Documents  becomes due on a day that is not a Business  Day, the
due date for such payment shall be extended to the next succeeding Business Day,
and interest shall accrue during such extension.  The outstanding  amount of the
Revolving  Credit Loans as reflected  on the  Revolving  Credit Note Record from
time to time shall be  considered  correct  and binding on the  Borrower  unless
within five (5)  Business  Days after  receipt of any notice by the Bank of such
outstanding amount, the Bank shall notify the Borrower to the contrary.

         5.4.  Inability to Determine LIBOR Rate.

         In the event, prior to the commencement of any Interest Period relating
to any LIBOR Rate Loan,  the Bank shall  determine  that adequate and reasonable
methods  do not  exist for  ascertaining  the LIBOR  Rate that  would  otherwise
determine  the rate of interest to be  applicable  to any LIBOR Rate Loan during
any Interest Period,  the Bank shall forthwith give notice of such determination
(which shall be conclusive and binding on the Borrower) to the Borrower. In such
event (a) any Loan  Request or  Conversion  Request  with  respect to LIBOR Rate
Loans shall be  automatically  withdrawn  and shall be deemed a request for Base
Rate Loans, (b) each LIBOR Rate Loan will automatically,  on the last day of the



then current Interest Period relating thereto,  become a Base Rate Loan, and (c)
the  obligations  of the Bank to make LIBOR Rate Loans shall be suspended  until
the Bank  determines  that the  circumstances  giving rise to such suspension no
longer exist, whereupon the Bank shall so notify the Borrower.

         5.5.  Illegality.

         Notwithstanding  any other  provisions  herein,  if the adoption of any
future law, regulation,  treaty or directive or any change in the interpretation
or  application  of any present or future law,  regulation,  treaty or directive
shall make it unlawful  for the Bank to make or maintain  LIBOR Rate Loans,  the
Bank shall  forthwith  give notice of such  circumstances  to the  Borrower  and
thereupon  (a) the  commitment  of the Bank to make  LIBOR Rate Loans or convert
Revolving  Credit Loans of another  Type to LIBOR Rate Loans shall  forthwith be
suspended and (b) the Bank's  Revolving  Credit Loans then  outstanding as LIBOR
Rate Loans, if any, shall be converted  automatically  to Base Rate Loans on the
last day of each Interest  Period  applicable to such LIBOR Rate Loans or within
such  earlier  period as may be  required by law.  The  Borrower  hereby  agrees
promptly  to pay the  Bank,  upon  demand by the Bank,  any  additional  amounts
payable by the Borrower  under  Section 5.9 in respect of any costs  incurred by
the Bank in making any conversion in accordance with this Section 5.5, including
any interest or fees  payable by the Bank to lenders of funds  obtained by it in
order to make or maintain its LIBOR Rate Loans hereunder.

         5.6.  Additional Costs, etc.

         If any change in any present, or the adoption of any future, applicable
law, which expression,  as used herein, includes statutes, rules and regulations
thereunder  and  interpretations  thereof  by  any  competent  court  or by  any
governmental   or  other   regulatory   body  or  official   charged   with  the
administration  or  the   interpretation   thereof  and  requests,   directives,
instructions and notices at any time or from time to time hereafter made upon or
otherwise  issued to the Bank by any central bank or other  fiscal,  monetary or
other authority (whether or not having the force of law), shall:

                  (a) subject the Bank to any tax, levy,  impost,  duty, charge,
         fee, deduction or withholding of any nature with respect to this Credit
         Agreement,  the other Loan Documents, any Letters of Credit, the Bank's
         Commitment or the  Revolving  Credit Loans (other than taxes based upon
         or measured by the income or profits of the Bank), or

                  (b)  materially  change  the  basis of  taxation  (except  for
         changes in taxes on income or  profits)  of payments to the Bank of the
         principal of or the interest on any Revolving Credit Loans or any other
         amounts  payable to the Bank under this Credit  Agreement or any of the
         other Loan Documents, or

                  (c) impose or increase or render applicable (other than to the
         extent  specifically  provided for elsewhere in this Credit  Agreement)
         any special deposit, reserve,  assessment,  liquidity, capital adequacy
         or other similar requirements  (whether or not having the force of law)
         against  assets held by, or deposits in or for the account of, or loans
         by, or letters of credit issued by, or  commitments of an office of any
         Bank, or



                  (d) impose on the Bank any other  conditions  or  requirements
         with respect to this Credit  Agreement,  the other Loan Documents,  any
         Letters of Credit,  the Revolving Credit Loans, the Bank's  Commitment,
         or any class of loans, letters of credit or commitments of which any of
         the Revolving  Credit Loans or the Bank's  Commitment forms a part, and
         the result of any of the foregoing is

                           (i)  to  increase  the  cost  to  any Bank of making,
                  funding,  issuing,  renewing,  extending or maintaining any of
                  the  Revolving  Credit Loans  or  the Bank's Commitment or any
                  Letter of Credit, or

                           (ii) to reduce  the  amount of  principal,  interest,
                  Reimbursement  Obligation or other amount  payable to the Bank
                  hereunder on account of the Bank's  Commitment,  any Letter of
                  Credit or any of the Revolving Credit Loans, or

                           (iii) to require  the Bank to make any  payment or to
                  forego any interest or  Reimbursement  Obligation or other sum
                  payable  hereunder,  the amount of which  payment or  foregone
                  interest  or   Reimbursement   Obligation   or  other  sum  is
                  calculated  by  reference  to the  gross  amount  of  any  sum
                  receivable  or deemed  received by the Bank from the  Borrower
                  hereunder,

then,  and in each such case,  the Borrower  will within ten (10) days after the
Borrower's  receipt of the  certificate  contemplated  by Section  5.8 below (it
being  understood  that such a certificate may be delivered at any time and from
time to time and as often as the occasion  therefor may arise under this Section
5.6),  pay to the  Bank  such  additional  amounts  as  will  be  sufficient  to
compensate the Bank for such  additional  cost,  reduction,  payment or foregone
interest or Reimbursement  Obligation or other sum; provided,  however, that the
Borrower  shall not be required to compensate  the Bank pursuant to this Section
5.6 for any such additional  cost,  reduction,  payment or foregone  interest or
Reimbursement Obligation or other sum incurred more than six months prior to the
date the Bank notifies the Borrower of the event giving rise to the Bank's claim
for compensation under this Section 5.6.

         5.7.  Capital Adequacy.

         If after the date hereof the Bank  reasonably  determines  that (a) the
adoption  of or  change  in any  law,  governmental  rule,  regulation,  policy,
guideline  or  directive  (whether  or not  having  the force of law)  regarding
capital  requirements  for banks or bank holding  companies or any change in the
interpretation or application thereof by a court or governmental  authority with
appropriate  jurisdiction,  or (b)  compliance  by the  Bank or any  corporation
controlling  the Bank  with  any law,  governmental  rule,  regulation,  policy,
guideline  or  directive  (whether  or not  having the force of law) of any such
entity regarding capital adequacy,  has the effect of reducing the return on the
Bank's  commitment  with respect to any Revolving  Credit Loans to a level below
that  which  the Bank  could  have  achieved  but for such  adoption,  change or
compliance  (taking into  consideration  the Bank's then existing  policies with
respect to capital  adequacy  and assuming  full  utilization  of such  entity's
capital)  by any



amount deemed by the Bank to be material,  then the Bank may notify the Borrower
of such fact.  To the extent that the amount of such  reduction in the return on
capital is not reflected in the Base Rate,  the Borrower  agrees to pay the Bank
the amount of such reduction in the return on capital as and when such reduction
is  determined  within  ten  (10)  days  after  presentation  by the  Bank  of a
certificate in accordance with Section 5.8 hereof  provided,  however,  that the
Borrower  shall not be required to compensate  the Bank pursuant to this Section
5.7 for any  reduction  incurred more than six months prior to the date the Bank
notifies  the  Borrower  of the  event  giving  rise  to the  Bank's  claim  for
compensation under this Section 5.7. The Bank shall allocate such cost increases
among its customers in good faith and on an equitable basis.

         5.8.  Certificate.

         A certificate  setting forth any additional amounts payable pursuant to
Sections 5.6 or 5.7 and a brief explanation of such amounts which are due, shall
be submitted by the Bank to the Borrower and, when  submitted by the Bank to the
Borrower, shall be conclusive,  absent manifest error, that such amounts are due
and owing so long as it reflects a reasonable  basis for the  calculation of the
amounts set forth therein and does not contain any manifest error.

         5.9.  Indemnity.

         The Borrower agrees to indemnify the Bank and to hold the Bank harmless
from and against any loss, cost or expense that the Bank may sustain or incur as
a consequence of (a) default by the Borrower in payment of the principal  amount
of or any  interest  on any  LIBOR  Rate  Loans  as and  when  due and  payable,
including any such loss or expense  arising from interest or fees payable by the
Bank to  lenders of funds  obtained  by it in order to  maintain  its LIBOR Rate
Loans,  (b) default by the Borrower in making a borrowing of or  conversion to a
LIBOR Rate Loan after the Borrower has given (or is deemed to have given) a Loan
Request or a Conversion  Request relating thereto in accordance with Section 2.6
or  Section  2.7 or (c) the  making of any  payment  of a LIBOR Rate Loan or the
making of any  conversion  of any such  LIBOR Rate Loan to a Base Rate Loan on a
day that is not the last day of the  applicable  Interest  Period  with  respect
thereto,  including  interest  or fees  payable  by the Bank to lenders of funds
obtained by it in order to maintain any such Revolving Credit Loans.

         5.10.  Interest After Default.

                  5.10.1.  Overdue Amounts.

                  Overdue  principal and (to the extent  permitted by applicable
         law)  interest  on the  Revolving  Credit  Loans and all other  overdue
         amounts  payable  hereunder  or under any of the other  Loan  Documents
         shall bear interest at a rate per annum equal to two percent (2%) above
         the Base Rate until such amount shall be paid in full (after as well as
         before judgment) and shall be payable on demand.

                  5.10.2.  Amounts Not Overdue.

                  During the continuance of an Event of Default the principal of
         the  Revolving  Credit  Loans not  overdue  shall,  until such Event of
         Default  has been cured or  remedied  or such Event of Default has been
         waived  by the Bank pursuant to Section 24, bear interest at a rate per
         annum  equal  to the greater of (a) two percent (2%) above the rate of
         interest  otherwise  applicable



         to such Revolving Credit Loans  pursuant to Section 2.5and (b) the rate
         of interest applicable to overdue principal pursuant to Section 5.10.1.

                       6. REPRESENTATIONS AND WARRANTIES.

         The Borrower represents and warrants to the Bank as follows:

         6.1.  Corporate Authority.

                  6.1.1.  Incorporation; Good Standing.

                  Each of the Borrower and its Subsidiaries (a) is a corporation
         duly organized, validly existing and in good standing under the laws of
         its state of  incorporation,  (b) has all requisite  corporate power to
         own its  property  and conduct its  business  as now  conducted  and as
         presently contemplated,  and (c) except as set forth on Schedule 6.1.1,
         is in good standing as a foreign  corporation and is duly authorized to
         do business in each jurisdiction  where such qualification is necessary
         except where a failure to be so qualified or authorized  would not have
         a Material Adverse Effect.

                  6.1.2.  Authorization.

                  The  execution,   delivery  and  performance  of  this  Credit
         Agreement and the other Loan  Documents to which the Borrower or any of
         its  Subsidiaries  is or is to  become  a party  and  the  transactions
         contemplated  hereby and thereby (a) are within the corporate authority
         of  such  Person,  (b)  have  been  duly  authorized  by all  necessary
         corporate proceedings, (c) do not conflict with or result in any breach
         or contravention of any provision of law,  statute,  rule or regulation
         to which the  Borrower  or any of its  Subsidiaries  is  subject or any
         judgment, order, writ, injunction,  license or permit applicable to the
         Borrower or any of its Subsidiaries, except for any conflict, breach or
         contravention which could not reasonably be expected to have a Material
         Adverse Effect, (d) do not conflict with any provision of the corporate
         charter or bylaws of the Borrower or any of its Subsidiaries and (e) do
         not conflict with any  provision of any  agreement or other  instrument
         binding upon, the Borrower or any of its  Subsidiaries,  except for any
         conflict  which  could not  reasonably  be  expected to have a Material
         Adverse Effect.

                  6.1.3.  Enforceability.

                  The  execution  and delivery of this Credit  Agreement and the
         other Loan  Documents to which the Borrower or any of its  Subsidiaries
         is or is to become a party  will  result in valid and  legally  binding
         obligations of such Person  enforceable  against it in accordance  with
         the  respective  terms and  provisions  hereof and  thereof,  except as
         enforceability  is limited by bankruptcy,  insolvency,  reorganization,
         moratorium  or  other  laws  relating  to or  affecting  generally  the
         enforcement  of  creditors'  rights  and  except  to  the  extent  that
         availability of the remedy of specific performance or injunctive relief
         is subject to the  discretion of the court before which any  proceeding
         therefor may be brought.

         6.2.  Governmental Approvals.

         The execution,  delivery and performance by the Borrower and any of its
Subsidiaries of this Credit  Agreement and the other Loan



Documents to which the Borrower or any of its  Subsidiaries is or is to become a
party and the  transactions  contemplated  hereby and thereby do not require the
approval or consent of, or filing  with,  any  governmental  agency or authority
other than those already obtained.

         6.3.  Title to Properties; Leases.

         Except as  indicated  on Schedule  6.3  hereto,  the  Borrower  and its
Subsidiaries  own all of the assets material to their business (except for minor
defects  in title that do not  interfere  with  their  ability to conduct  their
business as currently  conducted) shown to be owned in the consolidated  balance
sheet of the  Borrower referred to in Section 6.4.2 as at the Balance Sheet Date
or  acquired  since that date  (except  property  and assets  sold or  otherwise
disposed of in the ordinary  course of business  since the Balance  Sheet Date),
subject to no rights of others,  including any  mortgages,  leases,  conditional
sales agreements, title retention agreements, liens or other encumbrances except
Permitted Liens.

         6.4.  Financial Statements; Projections and Solvency.

                  6.4.1.  Fiscal Year.

                  The  Borrower and each of its  Subsidiaries  has a fiscal year
         which is the twelve months ending on December 31 of each calendar year.

                  6.4.2.  Financial Statements.

                  There has been  furnished to the Bank a  consolidated  balance
         sheet of the  Borrower  and its  Subsidiaries  as at the Balance  Sheet
         Date,  and a  consolidated  statement of income of the Borrower and its
         Subsidiaries   for  the   fiscal   year  then   ended,   certified   by
         PricewaterhouseCoopers  LLP. Such balance sheet and statement of income
         have been prepared in accordance  with  generally  accepted  accounting
         principles and fairly present, in all material respects,  the financial
         condition  of the  Borrower  as at the  close of  business  on the date
         thereof and the results of  operations  for the fiscal year then ended.
         There  are no  contingent  liabilities  of the  Borrower  or any of its
         Subsidiaries as of such date involving  material amounts,  known to the
         officers of the  Borrower,  which were not  disclosed  in such  balance
         sheet and the notes related thereto.

                  6.4.3.  Projections.

                  The  projections  of  the  annual  operating  budgets  of  the
         Borrower and its Subsidiaries on a consolidated  basis,  balance sheets
         and cash flow  statements  for the 2000 to 2002 fiscal  years have been
         delivered to the Bank.  To the  knowledge of the Borrower or any of its
         Subsidiaries,  no facts exist as of the date hereof that  (individually
         or in the aggregate) would result in any material adverse change in any
         of such projections. The projections have been prepared by the Borrower
         in good faith and are based upon estimates and assumptions  believed by
         the  Borrower  to be  reasonable  at  the  time  made.  Notwithstanding
         anything  herein  to the  contrary,  the  Bank  understands  that  such
         projections  as they  relate to future  events  are not to be viewed as
         fact and that  actual  results  during the  period or  periods  covered
         thereby may differ from the projected results set forth therein and the
         Borrower makes no  representation  as to the ability of the Borrower or
         any of its  Subsidiaries  to  achieve  the  results  set  forth  in any
         projections.



                  6.4.4.  Solvency.

                  The   Borrower,   individually,   and  the  Borrower  and  its
         Subsidiaries,  on a  consolidated  basis,  both before and after giving
         effect to the  transactions  contemplated by this Credit  Agreement and
         the other Loan Documents (a) are solvent; (b) have assets having a fair
         value in excess of their  liabilities;  (c) have  assets  having a fair
         value in excess of the  amount  required  to pay their  liabilities  on
         existing debts as such debts become due and payable;  and (d) have, and
         expect to continue to have,  access to adequate capital for the conduct
         of their  business and the ability to pay their debts from time to time
         incurred in  connection  with the  operation of their  business as such
         debts mature.

         6.5.  No Material Changes, etc.

         Since the Balance Sheet Date there has occurred no  materially  adverse
change  in  the  financial  condition  or  business  of  the  Borrower  and  its
Subsidiaries,  taken as a whole,  as shown on or reflected  in the  consolidated
balance sheet of the Borrower and its Subsidiaries as at the Balance Sheet Date,
or the  consolidated  statement of income for the fiscal year then ended,  other
than changes that have not had any Material  Adverse  Effect.  Since the Balance
Sheet Date, the Borrower has not made any Distribution  other than the dividends
paid by the Borrower on March 15, 2000 and May 15, 2000.

         6.6.  Franchises, Patents, Copyrights, etc.

         Except as set forth on Schedule  6.7 hereto,  each of the  Borrower and
its  Subsidiaries  possesses  or has the right to use all  franchises,  patents,
copyrights, trademarks, trade names, licenses and permits, and rights in respect
of the foregoing,  adequate for the conduct of its business substantially as now
conducted  , except  where the  failure  to so  possess or have the right to use
could not be reasonably  expected to have a Material Adverse Effect, and, to the
best of the Borrower's  knowledge,  no claim that the Borrower or any Subsidiary
is engaged in any activity that infringes upon the intellectual  property rights
of any other  Person is  pending,  except  for any such  claim  which  could not
reasonably be expected to have a Material Adverse Effect.

         6.7.  Litigation.

         Except as set  forth in  Schedule  6.7  hereto,  there are no  actions,
suits, proceedings or investigations of any kind pending or, to the knowledge of
the Borrower,  threatened against the Borrower or any of its Subsidiaries before
any court,  tribunal  or  administrative  agency or board as to which there is a
reasonable  possibility  of an  adverse  determination  and that,  if  adversely
determined,  could reasonably be expected to have a Material Adverse Effect,  or
which  question the  validity of this Credit  Agreement or any of the other Loan
Documents, or any action taken or to be taken pursuant hereto or thereto.

         6.8.  No Materially Adverse Contracts, etc.

         Neither  the  Borrower  nor any of its  Subsidiaries  is subject to any
charter,  corporate or other legal restriction,  or any judgment, decree, order,
rule or regulation  that has or is expected,  in the reasonable  judgment of the
Borrower's Principal Officers,  in the future to have a Material Adverse Effect.
Neither the Borrower nor any of its  Subsidiaries  is a party to any contract or
agreement that has or is expected,  in the judgment of the Borrower's  Principal
Officers, to have a Material Adverse Effect.


         6.9.  Compliance with Other Instruments, Laws, etc.

         Neither the Borrower nor any of its Subsidiaries is in violation of any
provision of its charter  documents,  bylaws,  or any agreement or instrument to
which it may be subject or by which it or any of its  properties may be bound or
any decree, order, judgment, statute, license, rule or regulation, in any of the
foregoing cases in a manner that could reasonably be expected to have a Material
Adverse Effect.

         6.10.  Tax Status.

         The  Borrower and its  Subsidiaries  (a) have made or filed all federal
and  material  state  income and all other  material  tax  returns,  reports and
declarations  required by any jurisdiction to which any of them is subject,  (b)
have paid all taxes and other  governmental  assessments  and  charges  shown or
determined to be due on such  returns,  reports and  declarations,  except those
being  contested  in  good  faith  and  by  appropriate  proceedings  diligently
conducted  and except as could not  reasonably  be  expected  to have a Material
Adverse  Effect,  and (c) have set aside on their  books  provisions  reasonably
adequate for the payment of all taxes for periods  subsequent  to the periods to
which such returns,  reports or declarations apply. There are no unpaid taxes in
any  material  amount  claimed  to  be  due  by  the  taxing  authority  of  any
jurisdiction,  and the  Principal  Officers of the Borrower know of no basis for
any  such  claim,  except  for  those  being  contested  in  good  faith  and by
appropriate  proceedings diligently conducted and except as could not reasonably
be expected to have a Material Adverse Effect.

         6.11.  No Event of Default.

         No Default or Event of Default has occurred and is continuing.

         6.12.  Holding Company and Investment Company Acts.

         Neither  the  Borrower  nor  any  of  its  Subsidiaries  is a  "holding
company", or a "subsidiary company" of a "holding company", or an "affiliate" of
a "holding  company",  as such terms are defined in the Public  Utility  Holding
Company  Act of  1935;  nor is it an  "investment  company",  or an  "affiliated
company" or a "principal  underwriter" of an "investment company", as such terms
are defined in the Investment Company Act of 1940.

         6.13.  Absence of Financing Statements, etc.

         Except  with  respect  to  Permitted  Liens,   there  is  no  financing
statement,  security agreement,  chattel mortgage, real estate mortgage or other
document  filed or recorded  with any filing  records,  registry or other public
office, that purports to cover, affect or give notice of any present or possible
future lien on, or security  interest in, any assets or property of the Borrower
or any of its Subsidiaries or any rights relating thereto.

         6.14.  Certain Transactions.

         Except for (a)  ordinary  course  dealings  with  Foreign  Subsidiaries
conducted in a manner consistent with past practices (or with respect to Foreign
Subsidiaries  acquired or created after the Closing Date,  conducted in a manner
consistent  with  current  foreign  operations),  (b)  transactions  between the
Borrower and a Guarantor or between Guarantors and (c) arm's length transactions
pursuant to which the Borrower or any of its Subsidiaries  makes payments in the
ordinary  course of business upon terms no less  favorable  than the Borrower or
such  Subsidiary  could  obtain from third  parties,  (i) none of the  officers,
directors,  or employees of the Borrower



or any of its  Subsidiaries  is  presently a party to any  transaction  with the
Borrower  or any of its  Subsidiaries  (other than for  services  as  employees,
officers and directors),  including any contract, agreement or other arrangement
providing for the furnishing of services to or by,  providing for rental of real
or personal property to or from, or otherwise  requiring payments to or from any
officer,  director or such employee or, to the  knowledge of the  Borrower,  any
corporation,  partnership, trust or other entity in which any officer, director,
or any such  employee  has a  substantial  interest or is an officer,  director,
trustee or partner and (ii) no Affiliate of the  Borrower or any  Subsidiary  is
presently  a  party  to  any  transaction  with  the  Borrower  or  any  of  its
Subsidiaries,  including any contract,  agreement or other arrangement providing
for the  furnishing  of  services  to or by,  providing  for  rental  of real or
personal  property to or from, or otherwise  requiring  payments to or from such
Affiliate  or,  to the  actual  knowledge  of  the  Principals  Officers  of the
Borrower,  any  corporation,  partnership,  trust or other  entity in which such
Affiliate has a substantial interest.

         6.15.  Employee Benefit Plans.

                  6.15.1.  In General.

                  Each Employee  Benefit Plan and each  Guaranteed  Pension Plan
         has been maintained and operated in compliance in all material respects
         with the provisions of ERISA and, to the extent  applicable,  the Code,
         including  but not  limited  to the  provisions  thereunder  respecting
         prohibited  transactions  and the  bonding  of  fiduciaries  and  other
         persons handling  plan funds as required by Section 412 of ERISA except
         to the  extent  that  failure  not  to  comply could not  reasonably be
         expected to   have   a   Material  Adverse  Effect.  The  Borrower  has
         heretofore delivered to the Bank the most recently   completed   annual
         report,  Form  5500,  with  all  required   attachments,  and actuarial
         statement required to be  submitted  under  Section 103(d)  of   ERISA,
         with respect to each Guaranteed Pension Plan.

                  6.15.2.  Terminability of Welfare Plans.

                  No Employee Benefit Plan, which is an employee welfare benefit
         plan within the  meaning of Section 3(1) or  Section 3(2)(B)  of ERISA,
         provides benefit  coverage  subsequent  to  termination  of employment,
         except as required by Title I, Part 6 of ERISA or the applicable  state
         insurance laws.  The Borrower may terminate each such  Plan at any time
         (or at any time  subsequent  to  the   expiration  of   any  applicable
         bargaining agreement) in  the  discretion  of  the  Borrower    without
         liability  to any Person  other  than  for  claims  arising  prior   to
         termination.

                  6.15.3.  Guaranteed Pension Plans.

                  Each contribution  required to be made to a Guaranteed Pension
         Plan,  whether  required  to be  made to  avoid  the  incurrence  of an
         accumulated  funding  deficiency,  the  notice  or lien  provisions  of
         Section 302(f) of ERISA, or  otherwise,  has been timely made except to
         the extent that failure not to comply could not reasonably  be expected
         to have a Material  Adverse Effect.  Except  to the extent that failure
         not to comply could not  reasonably be  expected  to  have  a  Material
         Adverse Effect, no  waiver  of an accumulated  funding  deficiency   or
         extension of amortization periods has been received with respect to any
         Guaranteed Pension  Plan,  and neither the  Borrower



         nor   any   ERISA  Affiliate   is   obligated    to    or   has  posted
         security   in  connection with an amendment to    a Guaranteed  Pension
         Plan    pursuant   to    Section  307   of    ERISA   or     Section
         401(a)(29) of the Code.  No liability to the PBGC (other than  required
         insurance premiums,  all of which  have  been  paid) has been  incurred
         by the Borrower or any ERISA Affiliate  with  respect to any Guaranteed
         Pension Plan and there has not been any ERISA  Reportable  Event (other
         than an ERISA  Reportable  Event as to which the requirement of 30 days
         notice  has  been  waived),  or  any  other  event  or  condition which
         presents a material  risk of  termination  of  any  Guaranteed  Pension
         Plan by the PBGC.  Based on the latest  valuation  of  each  Guaranteed
         Pension Plan (which in each case  occurred  within twelve months of the
         date  of  this  representation),  and  on  the  actuarial  methods  and
         assumptions  employed  for  that  valuation,  the   aggregate   benefit
         liabilities  of all such Guaranteed Pension Plans within the meaning of
         Section 4001 of ERISA did not exceed the aggregate value of  the assets
         of all such Guaranteed Pension Plans, disregarding for this purpose the
         benefit liabilities  and  assets of any  Guaranteed  Pension  Plan with
         assets  in  excess  of  benefit liabilities.

                  6.15.4.  Multiemployer Plans.

                  Neither the Borrower nor any ERISA  Affiliate has incurred any
         material liability (including secondary liability) to any Multiemployer
         Plan  as a  result  of a  complete  or  partial  withdrawal  from  such
         Multiemployer Plan under Section 4201 of ERISA or as a result of a sale
         of assets described  in Section 4204 of ERISA.  Neither the  Borrower
         nor any ERISA Affiliate has been notified  that any  Multiemployer Plan
         is  in  reorganization  or  insolvent  under  and within the meaning of
         Section 4241 or Section 4245 of  ERISA  or  is  at  risk  of   entering
         reorganization  or becoming insolvent,  or that any Multiemployer  Plan
         intends  to  terminate  or  has  been terminated under Section 4041A of
         ERISA.

         6.16.  Use of Proceeds.

                  6.16.1.  General.

                  The  proceeds of the  Revolving  Credit Loans shall be used to
         finance all or any  portion of capital  expenditures  and/or  Permitted
         Acquisitions,  and for working capital and general corporate  purposes.
         The Borrower will obtain  Letters of Credit solely for working  capital
         and general corporate purposes.

                  6.16.2.  Regulations U and X.

                  No portion of any Revolving  Credit Loan is to be used, and no
         portion of any Letter of Credit is to be  obtained,  for the purpose of
         purchasing or carrying any "margin  security" or "margin stock" as such
         terms are used in  Regulations U and X of the Board of Governors of the
         Federal Reserve System, 12 C.F.R. Parts 221 and 224.

                  6.16.3.  Ineligible Securities.

                  No portion of the proceeds of any Revolving Credit Loans is to
         be used, and no portion of any Letter of Credit is to be obtained,  for
         the purpose of knowingly  purchasing,  or providing  credit support for
         the purchase of, during the  underwriting or placement period or within
         30 days thereafter, any Ineligible Securities underwritten or privately
         placed by a Section 20 Subsidiary.



         6.17.  Environmental Compliance.

         The Borrower has, with respect to the Real Estate owned by the Borrower
or any of its  Subsidiaries  (the "Owned  Real  Estate"),  taken all  reasonably
appropriate steps to investigate the past and present condition and usage of the
Owned Real Estate and the  operations  conducted  thereon  and,  based upon such
diligent  investigation,  has made the determinations  contained in this Section
6.17 with  respect to the Owned Real  Estate.  With  respect to the Real  Estate
leased by the Borrower or any of its  Subsidiaries  (the "Leased Real  Estate"),
the  Borrower  has  not  made  any  independent   investigation  and  makes  the
representations  and  warranties  contained in this ss.6.17  based solely on its
actual knowledge.

                  (a)  Except  as  set  forth  on  Schedule  6.17,  none  of the
         Borrower, its Subsidiaries or, to the best of the Borrower's knowledge,
         any  operator  of the  Real  Estate  or any  operations  thereon  is in
         violation,  or written  alleged  violation,  of any  judgment,  decree,
         order,  law,  license,  rule or regulation  pertaining to environmental
         matters, including without limitation, those arising under the Resource
         Conservation and Recovery Act ("RCRA"), the Comprehensive Environmental
         Response, Compensation and Liability Act of 1980 as amended ("CERCLA"),
         the Superfund Amendments and Reauthorization Act of 1986 ("SARA"),  the
         Federal  Clean  Water  Act,  the  Federal  Clean  Air  Act,  the  Toxic
         Substances  Control  Act,  or any state or local  statute,  regulation,
         ordinance,   order  or  decree  relating  to  health,   safety  or  the
         environment  (hereinafter  "Environmental Laws"), which violation could
         reasonably be expected to have a Material Adverse Effect.

                  (b) Except as set forth on Schedule 6.17, neither the Borrower
         nor any of its  Subsidiaries  has received  notice from any third party
         including, without limitation, any federal, state or local governmental
         authority,  (i) that any one of them has been  identified by the United
         States  Environmental   Protection  Agency  ("EPA")  as  a  potentially
         responsible  party under  CERCLA  with  respect to a site listed on the
         National  Priorities List, 40 C.F.R. Part 300 Appendix B; (ii) that any
         hazardous  waste,  as  defined   by   42 U.S.C.  Section 6903(5),   any
         hazardous substances  as  defined  by 42 U.S.C.  Section 9601(14),  any
         pollutant  or contaminant  as  defined  by  42  U.S.C. Section 9601(33)
         and any toxic substances, oil or hazardous materials or other chemicals
         or  substances  regulated  by  any  Environmental  Laws     ("Hazardous
         Substances") which  any one  of  them   has   generated, transported or
         disposed of has been found at any site at  which  a  federal,  state or
         local agency or other third party has  conducted  or has  ordered  that
         the   Borrower  or  any   of  its  Subsidiaries   conduct   a  remedial
         investigation,   removal  or  other  response  action  pursuant  to any
         Environmental  Law; or (iii) that it is or  shall be a named  party  to
         any  claim,  action,  cause of   action,  complaint,   or   legal    or
         administrative  proceeding  (in   each   case, contingent or otherwise)
         arising out of any third party's incurrence  of costs, expenses, losses
         or  damages  of  any  kind whatsoever in connection with the release of
         Hazardous Substances.

                  (c) except as set forth on Schedule 6.17  attached  hereto and
         except for such matters as could not  reasonably  be expected to have a
         Material  Adverse



         Effect:  (i) no    portion    of    the   Real   Estate   has      been
         used for the  handling,  processing,  storage or disposal of  Hazardous
         Substances  except in accordance  with applicable  Environmental  Laws;
         and, to the best of the Borrower's  knowledge,  no underground  tank or
         other  underground  storage  receptacle  for  Hazardous  Substances  is
         located on any  portion of the Real  Estate;  (ii) in the course of any
         activities conducted by the Borrower,  its Subsidiaries or, to the best
         of the Borrower's knowledge,  operators of its properties, no Hazardous
         Substances  have been  generated  or are being used on the Real  Estate
         except in accordance with applicable  Environmental  Laws;  (iii) there
         have been no releases  (i.e. any past or present  releasing,  spilling,
         leaking, pumping, pouring, emitting, emptying, discharging,  injecting,
         escaping,  disposing or dumping) of Hazardous Substances on, upon, into
         or from the  properties  of the  Borrower  or its  Subsidiaries,  which
         releases  would have a material  adverse  effect on the value of any of
         the Real Estate or adjacent properties or the environment;  (iv) to the
         best of the Borrower's knowledge, there have been no releases on, upon,
         from or into  any  real  property  in the  vicinity  of any of the Real
         Estate which, through soil or groundwater contamination,  may have come
         to be located on, and which would have a material adverse effect on the
         value  of,  the  Real  Estate;  and  (v)  in  addition,  any  Hazardous
         Substances that have been generated on any of the Real Estate have been
         transported  offsite only by carriers having an  identification  number
         issued by the EPA, to the best of the  Borrower's  knowledge  have been
         treated  or  disposed  of  only by  treatment  or  disposal  facilities
         maintaining  valid permits as required under  applicable  Environmental
         Laws, which  transporters and facilities have been and are, to the best
         of the Borrower's knowledge,  operating in compliance with such permits
         and applicable Environmental Laws; and

                  (d) none of the  Borrower and its  Subsidiaries  or any of the
         Real Estate is subject to any  applicable  environmental  law requiring
         the  performance  of  Hazardous  Substances  site  assessments,  or the
         removal or remediation of Hazardous Substances, or the giving of notice
         to any  governmental  agency  or the  recording  or  delivery  to other
         Persons of an environmental  disclosure document or statement by virtue
         of the  transactions  set forth  herein and  contemplated  hereby  with
         respect to which failure to comply could reasonably be expected to have
         a Material Adverse Effect.

         6.18.  Subsidiaries, etc.

         Schedule  6.18,  as such  schedule  may be  updated  from  time to time
pursuant  to  Section  7.14 or by the  Borrower  in its  Compliance  Certificate
delivered pursuant to Section 7.4(c), sets forth a true and complete list of all
Subsidiaries and Joint Ventures of the Borrower and its Subsidiaries.

         6.19.  Chief Executive Office.

         The  Borrower's  chief  executive  office  is  at 9  Hampshire  Street,
Mansfield,  Massachusetts  02048,  at which  location  its books and records are
kept. Each Guarantor's chief executive office is as set forth in the Guaranty to
which it is a party.



         6.20.  Capitalization Documents.

         The  Borrower  and each  Guarantor  has  delivered to the Bank true and
complete copies of all of the Capitalization  Documents and neither the Borrower
nor any  Guarantor  has amended any such  documents  in any  material  respects,
except as may have been disclosed to and consented to by the Bank and except for
any  amendment  which  does not  adversely  affect the  interest  of the Bank in
respect of the Obligations or any amendment permitted by Section 8.14.

         6.21.  Insurance.

         The  Borrower and each of the  Guarantors  maintains  with  financially
sound and  reputable  insurers  insurance  with  respect to its  properties  and
businesses   against  such  casualties  and   contingencies  as  is  customarily
maintained  by companies in the same or similar lines of business in the same or
similar locations,  with the details of such coverage being more fully described
on Schedule 6.21 hereto.

         6.22.  Disclosure.

         None  of this  Credit  Agreement  or any of the  other  Loan  Documents
contains any untrue  statement  of a material  fact or omits to state a material
fact  (known  to the  Borrower  or any of its  Subsidiaries  in the  case of any
document  or  information  not  furnished  by it or  any  of  its  Subsidiaries)
necessary  in order to make the  statements  herein or therein,  in light of the
circumstances  under  which  they were  made,  not  misleading  in any  material
respect. There is no fact known to the Borrower or any of its Subsidiaries which
materially  adversely  affects the  business,  assets,  financial  condition  or
prospects of the Borrower and its  Subsidiaries,  taken as a whole,  or which is
reasonably  likely in the future to have a Material  Adverse  Effect,  which, in
either case, has not been disclosed  herein or in the other Loan Documents or in
a report, financial statement,  exhibit,  schedule or other writing furnished to
the Bank in connection with the transactions contemplated hereby or thereby.

                    7. AFFIRMATIVE COVENANTS OF THE BORROWER.

         The Borrower covenants and agrees that, so long as any Revolving Credit
Loan, Unpaid Reimbursement Obligation, Letter of Credit or Revolving Credit Note
is outstanding or the Bank has any obligation to make any Revolving Credit Loans
or to issue, extend or renew any Letters of Credit:

         7.1.  Punctual Payment.

         The  Borrower  will  duly  and  punctually  pay or cause to be paid the
principal  and  interest  on  the  Revolving  Credit  Loans,  all  Reimbursement
Obligations,  the  Letter  of Credit  Fees,  the  commitment  fees and all other
amounts  provided for in this Credit  Agreement and the other Loan  Documents to
which the Borrower or any of its Subsidiaries is a party, all in accordance with
the terms of this Credit Agreement and such other Loan Documents (but subject to
any applicable grace periods).

         7.2.  Maintenance of Office.

         The Borrower  will maintain its chief  executive  office in 9 Hampshire
Street,  Mansfield,  Massachusetts  02048,  or at such other place in the United
States of America as the Borrower  shall  designate  upon written  notice to the
Bank,  where  notices,  presentations  and  demands to or upon the  Borrower  in
respect of the Loan  Documents  to which the Borrower is a party may be given or
made.



         7.3.  Records and Accounts.

         The Borrower will (a) keep, and cause each of its Subsidiaries to keep,
true and accurate  records and books of account in which full,  true and correct
entries  will  be  made  in  accordance  with  generally   accepted   accounting
principles, (b) maintain adequate accounts and reserves for all taxes (including
income taxes),  depreciation,  depletion,  obsolescence  and amortization of its
properties  and the  properties of its  Subsidiaries,  contingencies,  and other
reserves,  and  (c) at all  times  engage  PricewaterhouseCoopers  LLP or  other
independent  certified  public  accountants  satisfactory  to  the  Bank  as the
independent  certified  public  accountants of the Borrower and its Subsidiaries
and will not permit more than thirty (30) days to elapse  between the  cessation
of such firm's (or any successor firm's) engagement as the independent certified
public  accountants of the Borrower and its  Subsidiaries and the appointment in
such capacity of a successor firm as shall be satisfactory to the Bank.

         7.4.  Financial Statements, Certificates and Information.

         The Borrower will deliver to the Bank:

                  (a) as soon as  practicable,  but in any event not later  than
         ninety (90) days after the end of each fiscal year of the Borrower, the
         consolidated balance sheet of the Borrower and its Subsidiaries,  as at
         the end of such year, and the related consolidated  statement of income
         and  consolidated  statement  of cash flow for such year,  each setting
         forth in comparative  form the figures for the previous fiscal year and
         all such consolidated  statements to be in reasonable detail,  prepared
         in  accordance  with  generally  accepted  accounting  principles,  and
         certified  without  qualification by  PricewaterhouseCoopers  LLP or by
         other  independent  certified  public  accountants  satisfactory to the
         Bank,  together with a written  statement from such  accountants to the
         effect that they have read a copy of the covenants set forth in Section
         9 of this Credit Agreement and definitions relating thereto,  and that,
         in making the examination necessary  to said  certification,  they have
         obtained no knowledge  of any Default or Event of Default,  or, if such
         accountants shall have obtained  knowledge of any then existing Default
         or Event of Default  they shall  disclose  in such  statement  any such
         Default or Event of Default;  provided that such accountants  shall not
         be liable to the Bank for failure to obtain knowledge of any Default or
         Event of Default;

                  (b) as soon as  practicable,  but in any event not later  than
         forty-five  (45) days after the end of each of the fiscal  quarters  of
         the Borrower, copies of the unaudited consolidated balance sheet of the
         Borrower and its Subsidiaries,  as at the end of such quarter,  and the
         related consolidated  statement of income and consolidated statement of
         cash flow for the portion of the  Borrower's  fiscal year then elapsed,
         all in  reasonable  detail and prepared in  accordance  with  generally
         accepted  accounting  principles,  together with a certification by the
         principal  financial or  accounting  officer of the  Borrower  that the
         information  contained in such financial statements fairly presents, in
         all material  respects,  the financial position of the Borrower and its
         Subsidiaries  on the date thereof  (subject to year-end  adjustments in
         conformity with rules for interim financial reporting);



                  (c)   simultaneously   with  the  delivery  of  the  financial
         statements  referred to in  subsections  (a) and (b) above, a statement
         certified  by the  principal  financial  or  accounting  officer of the
         Borrower  in  substantially  the form of Exhibit C hereto  and  setting
         forth in reasonable detail computations  evidencing compliance with the
         covenants contained in Section 9 and (if applicable) reconciliations to
         reflect changes in generally accepted  accounting  principles since the
         Balance  Sheet Date and updating  Schedule 6.18 to reflect the creation
         or  acquisition  of any  new  Subsidiaries  or any new  Joint  Ventures
         permitted under this Credit Agreement;

                  (d)  contemporaneously  with the  filing or  mailing  thereof,
         copies of all material of a financial  nature filed with the Securities
         and Exchange Commission or sent to the stockholders of the Borrower;

                  (e) from time to time upon the reasonable  request of the Bank
         (but in no event more  frequently  than twice  during any fiscal  year,
         unless an Event of Default  shall  have  occurred  and is  continuing),
         projections  of  the  Borrower  and  its  Subsidiaries  updating  those
         projections  delivered to the Bank and referred to in Section 6.4.3 or,
         if applicable,  updating   any   later   such  projections delivered in
         response to a request pursuant to this Section 7.4(e); and

                  (f)  from  time  to  time  such  other   financial   data  and
         information (including accountants' management letters) as the Bank may
         reasonably request.

         7.5.  Notices.

                  7.5.1.  Defaults.

                  The Borrower will  promptly  notify the Bank in writing of the
         occurrence of any Default or Event of Default. If any Person shall give
         any notice in writing or exercise any legal  remedies to the  knowledge
         of any Principal  Officer of the Borrower or any  Subsidiary in respect
         of a claimed default  (whether or not constituting an Event of Default)
         under  this  Credit   Agreement   or  any  other   note,   evidence  of
         indebtedness,  indenture or other monetary  obligation to which or with
         respect to which the Borrower or any of its  Subsidiaries is a party or
         obligor, whether as principal,  guarantor, surety or otherwise, in each
         case, in an  individual  principal  amount of  $1,000,000 or more,  the
         Borrower  shall  forthwith  give  written  notice  thereof to the Bank,
         describing the notice or action and the nature of the claimed default.

                  7.5.2.  Environmental Events.

                  The Borrower  will promptly give notice to the Bank (a) of any
         violation  of any  Environmental  Law that the  Borrower  or any of its
         Subsidiaries  reports  in writing or is  reportable  by such  Person in
         writing  (or for  which any  written  report  supplemental  to any oral
         report is made) to any  federal,  state or local  environmental  agency
         except for any  violations  which could not  reasonably  be expected to
         have a Material  Adverse  Effect and (b) promptly  after becoming aware
         thereof, of any inquiry,  proceeding,  investigation,  or other action,
         including  a  notice  from  any  agency  of   potential



         environmental liability, of any federal,  state or local  environmental
         agency or board,   relating  to  Real  Estate,   except  for  any  such
         inquiry,  proceeding,  investigation  or other  action or notice  which
         could not reasonably be expected to have a Material Adverse Effect.

                  7.5.3.  Notification of Claim against Property.

                  The Borrower  will,  promptly  after  becoming  aware thereof,
         notify the Bank in writing of any setoff or any claims (including, with
         respect  to the  Real  Estate,  environmental  claims  that  have  been
         asserted  in  writing)  to  which  any of the  Borrower's  property  is
         subject,  to the extent that any such setoff or claims could reasonably
         be expected to have a Material Adverse Effect.

                  7.5.4.  Notice of Litigation and Judgments.

                  The Borrower will, and will cause each of its Subsidiaries to,
         give notice to the Bank in writing  promptly after of becoming aware of
         any  litigation  or  proceedings  threatened  in writing or any pending
         litigation  and  proceedings  affecting  the  Borrower  or  any  of its
         Subsidiaries or to which the Borrower or any of its  Subsidiaries is or
         becomes a party  involving an uninsured  claim  against the Borrower or
         any of its  Subsidiaries  that could  reasonably  be expected to have a
         Material Adverse Effect, which notice shall state the nature and status
         of  such  litigation  or  proceedings,  provided,  as  to  any  pending
         litigation matter existing on the Closing Date or subsequently  noticed
         to the Bank, the Borrower and its  Subsidiaries  shall only be required
         to provide the Bank with any  updates on the status of such  matters if
         there occurs any material adverse change in the status of such matters.
         The Borrower  will,  and will cause each of its  Subsidiaries  to, give
         notice to the Bank, in writing,  in form and detail satisfactory to the
         Bank  promptly  after any judgment not covered by  insurance,  final or
         otherwise,  is rendered against the Borrower or any of its Subsidiaries
         in an amount in excess of $1,000,000.

         7.6.  Corporate Existence; Maintenance of Properties.

         The  Borrower  will do or  cause  to be done all  things  necessary  to
preserve and keep in full force and effect (a) its corporate existence,  and (b)
the rights and  franchises  material to its business and those of  businesses of
its  Subsidiaries  and  will  not,  and  will not  cause  or  permit  any of its
Subsidiaries  to, convert to a limited  liability  company  except,  solely with
respect to Subsidiaries  which are not  Guarantors,  to the extent that any such
conversion would not be materially  disadvantageous to the Bank or the Borrower,
such  Subsidiary may be converted to a limited  liability  company.  It (i) will
cause all of its properties and those of its Subsidiaries  used or useful in the
conduct of its business or the business of its Subsidiaries to be maintained and
kept in good  condition,  repair  and  working  order,  ordinary  wear  and tear
excepted,  and supplied with all necessary equipment,  except to the extent that
the failure to do so could not reasonably be expected to have a Material Adverse
Effect,   (ii)  will  cause  to  be  made  all  necessary   repairs,   renewals,
replacements,  betterments and improvements  thereof,  all as in the judgment of
the Borrower may be  necessary  so that the  business  carried on in  connection
therewith may be properly and advantageously  conducted at all times,  except to
the extent that the failure to do so could not  reasonably be expected to have a
Material Adverse Effect, and (iii) will, and



will cause each of its  Subsidiaries  to,  continue to engage  primarily  in the
businesses now conducted by them and in related or similar businesses;  provided
that nothing in this Section 7.6 shall prevent the Borrower  from  discontinuing
the operation and  maintenance  of any of its  properties or any of those of its
Subsidiaries  if  such  discontinuance  is,  in the  judgment  of the  Borrower,
desirable  in the  conduct  of its or  their  business  and  that  do not in the
aggregate  materially  adversely  affect the  business of the  Borrower  and its
Subsidiaries on a consolidated basis.
         7.7.  Insurance.

         The Borrower will, and will cause each of its Subsidiaries to, maintain
with  financially  sound and reputable  insurers  insurance  with respect to its
properties and business  against such casualties and  contingencies  and in such
amounts as shall be in  accordance  with the  general  practices  of  businesses
engaged in similar activities in similar geographic area.

         7.8.  Taxes.

         The Borrower will, and will cause each of its Subsidiaries to, duly pay
and discharge, or cause to be paid and discharged,  before the same shall become
overdue, all material taxes,  assessments and other governmental charges imposed
upon it and its real properties,  sales and activities,  or any part thereof, or
upon the income or profits therefrom,  as well as all material claims for labor,
materials,  or supplies that if unpaid might by law become a lien or charge upon
any of its property;  provided that any such tax,  assessment,  charge,  levy or
claim need not be paid if the  validity or amount  thereof  shall  currently  be
contested in good faith by appropriate  proceedings  diligently conducted and if
the  Borrower  or such  Subsidiary  shall  have set aside on its books  adequate
reserves with respect  thereto;  and provided further that the Borrower and each
Subsidiary of the Borrower will pay all such taxes, assessments, charges, levies
or claims  forthwith upon the  commencement of proceedings to foreclose any lien
that may have  attached  as  security  therefor,  except to the extent  that the
failure to do so could not  reasonably  be expected  to have a Material  Adverse
Effect.

         7.9.  Inspection of Properties and Books, etc.

                  7.9.1.  General.

                  The Borrower  shall  permit the Bank through  itself or any of
         the Bank's designated representatives,  to visit and inspect any of the
         properties of the Borrower or any of its  Subsidiaries,  to examine the
         books of  account of the  Borrower  and its  Subsidiaries  (and to make
         copies  thereof and  extracts  therefrom),  and to discuss the affairs,
         finances and accounts of the Borrower and its Subsidiaries with, and to
         be  advised  as to the same by,  its and  their  officers,  all at such
         reasonable times and intervals as the Bank may reasonably  request and,
         unless an Event of Default shall have occurred and be continuing,  upon
         reasonable prior notice.

                  7.9.2.  Appraisals.

                  No more  frequently  than once  each  calendar  year,  or more
         frequently  as determined by the Bank if an Event of Default shall have
         occurred and be continuing,  upon the request of the Bank, the Borrower
         will  obtain  and  deliver  to the Bank  appraisal  reports in form and
         substance and from appraisers satisfactory to the Bank, stating (i) the
         then current fair market,  orderly  liquidation and forced  liquidation
         values of all or any portion of the



         equipment  or  real  estate   owned   by   the   Borrower or any of its
         Subsidiaries  and (ii)  the then  current business value of each of the
         Borrower and its  Subsidiaries.  All such appraisals shall be conducted
         and made at the expense of the Borrower.

                  7.9.3.  Communications with Accountants.

                  At the  request  of the Bank,  the  Borrower  shall  deliver a
         letter  addressed  to  the  Borrower's   independent  certified  public
         accountants instructing them that, in the presence of the Borrower, the
         Bank  may  communicate  with  such  accountants  and  authorizing  such
         accountants  to disclose to the Bank any and all  financial  statements
         and other supporting financial documents and schedules including copies
         of any  management  letter  with  respect  to the  business,  financial
         condition and other affairs of the Borrower or any of its Subsidiaries.

         7.10.  Compliance with Laws, Contracts, Licenses, and Permits.

         The Borrower will, and will cause each of its  Subsidiaries  to, comply
in all material  respects with (a) the applicable laws and regulations  wherever
its business is conducted, including all Environmental Laws, except as could not
reasonably be expected to have a Material Adverse Effect,  (b) the provisions of
its charter  documents and by-laws,  (c) all agreements and instruments by which
it or any of its  properties  may be bound  except  as could not  reasonably  be
expected  to have a  Material  Adverse  Effect and (d) all  applicable  decrees,
orders,  and  judgments  except as could not  reasonably  be  expected to have a
Material Adverse Effect.  If any  authorization,  consent,  approval,  permit or
license from any officer,  agency or  instrumentality  of any  government  shall
become  necessary  or  required  in  order  that  the  Borrower  or  any  of its
Subsidiaries  may fulfill any of its  obligations  hereunder or any of the other
Loan Documents to which the Borrower or such Subsidiary is a party, the Borrower
will promptly upon becoming  aware thereof  notify the Bank of such necessity or
requirement  and, at the request of the Bank, will, or (as the case may be) will
cause such Subsidiary to,  immediately  take or cause to be taken all reasonable
steps  within  the power of the  Borrower  or such  Subsidiary  to  obtain  such
authorization,  consent,  approval,  permit or license and furnish the Bank with
evidence thereof.

         7.11.  Employee Benefit Plans.

         The Borrower will (a) promptly upon filing the same with the Department
of Labor or Internal  Revenue  Service upon request of the Bank,  furnish to the
Bank a copy of the most recent  actuarial  statement  required  to be  submitted
under Section  103(d) of ERISA and Annual Report,  Form 5500,  with all required
attachments,  in respect of each  Guaranteed  Pension Plan and (b) promptly upon
receipt or  dispatch,  furnish to the Bank any notice,  report or demand sent or
received in respect of a Guaranteed Pension Plan under Sections 302, 4041, 4042,
4043, 4063, 4065, 4066 and 4068 of ERISA, or in respect of a Multiemployer Plan,
under Sections 4041A, 4202, 4219, 4242, or 4245 of ERISA.

         7.12.  Use of Proceeds.

         The Borrower will use the proceeds of the Revolving Credit Loans solely
to  finance  all  or  any  portion  of  capital  expenditures  and/or  Permitted
Acquisitions,  and for  working  capital  and general  corporate  purposes.  The
Borrower will obtain  Letters of Credit  solely for working  capital and general
corporate purposes.



         7.13.  Replacement Instruments.

         Upon receipt of an affidavit of loss and indemnity of an officer of the
Bank as to the loss,  theft,  destruction or mutilation of any Revolving  Credit
Note in form and substance  mutually  satisfactory to the Bank and the Borrower,
and,  in the case of any such  loss,  theft,  destruction  or  mutilation,  upon
cancellation of such Revolving Credit Note,

         the Borrower  shall issue,  in lieu thereof,  a  replacement  Revolving
Credit Note in the same principal amount thereof and otherwise of like tenor.

         7.14.  New Guarantors.

         The Borrower will cause each  wholly-owned  Domestic  Subsidiary of the
Borrower (other than the Inactive Subsidiaries)  created,  acquired or otherwise
existing,  on or after the Closing Date to promptly become a Guarantor and shall
cause such  Subsidiary  to execute and deliver to the Bank a Guaranty,  together
with, at the request of the Bank, (a) legal opinions  similar to those delivered
by the Borrower's  counsel to the Bank on the Closing Date and otherwise in form
and substance satisfactory to the Bank opining as to the authorization, validity
and  enforceability of such Guaranty,  (b) copies of such Subsidiary's  charter,
by-laws  or  other  similar  organizational  documents  and (c)  copies  of such
resolutions and certificates of such Subsidiary as to the  authorization of such
Guaranty.  The Bank will update  Schedule  6.18 to reflect the  addition of such
Subsidiary.

         7.15.  Further Assurances.

         The  Borrower  will,  and  will  cause  each  of its  Subsidiaries  to,
cooperate  with the Bank and execute such further  instruments  and documents as
the Bank shall  reasonably  request to carry out to its reasonable  satisfaction
the  transactions  contemplated  by this  Credit  Agreement  and the other  Loan
Documents.

         7.16.  Ownership of Guarantors.

         The Borrower will at all times legally and beneficially  own,  directly
or indirectly,  all of the issued and outstanding  shares of capital stock of or
other ownership  interests in each  Guarantor,  except for any shares of capital
stock or other ownership  interests  required to be issued to qualify  directors
under  applicable  law and except to the extent the Borrower  and/or one or more
Guarantors enters into a merger, consolidation or other transaction permitted by
Section 8.5.

         7.17.  Inactive Subsidiaries.

         In the event that at any time an Inactive Subsidiary owns assets having
a total book value in excess of $25,000 or commences any business activity other
than in  connection  with its own  dissolution,  the  Borrower  will  cause such
Inactive Subsidiary to promptly become a Guarantor and shall cause such Inactive
Subsidiary to execute and deliver to the Bank a Guaranty,  together with, at the
request  of the Bank,  (a) legal  opinions  similar  to those  delivered  by the
Borrower's  counsel to the Bank on the Closing  Date and  otherwise  in form and
substance satisfactory to the Bank opining as to the authorization, validity and
enforceability  of such  Guaranty,  (b)  copies  of such  Inactive  Subsidiary's
charter,  by-laws or other  similar  organizational  documents and (c) copies of
such  resolutions  and  certificates  of  such  Inactive  Subsidiary  as to  the
authorization of such Guaranty.



                 8. CERTAIN NEGATIVE COVENANTS OF THE BORROWER.

         The Borrower covenants and agrees that, so long as any Revolving Credit
Loan, Unpaid Reimbursement Obligation, Letter of Credit or Revolving Credit Note
is outstanding or the Bank has any obligation to make any Revolving Credit Loans
or to issue, extend or renew any Letters of Credit:

         8.1.  Restrictions on Indebtedness.

         The Borrower will not, and will not permit any of its  Subsidiaries to,
create,  incur,  assume,  guarantee  or be or  remain  liable,  contingently  or
otherwise, with respect to any Indebtedness other than:

                  (a)  Indebtedness  to  the  Bank arising under any of the Loan
         Documents;

                  (b)  warranties of products or services, in each case incurred
         in the ordinary course of business;

                  (c)  Indebtedness  incurred in connection with the acquisition
         after the date hereof of any real or personal  property by the Borrower
         or such  Subsidiary or under any  Capitalized  Lease entered into after
         the date hereof,  provided that the aggregate  principal amount of such
         Indebtedness of the Borrower and its Subsidiaries  shall not exceed the
         aggregate amount of $1,000,000 at any one time;

                  (d)  Indebtedness  existing  on the date hereof and listed and
         described on Schedule 8.1 hereto and any extension,  renewal, refunding
         or  refinancing  of  such  Indebtedness  that  does  not  increase  the
         principal amount of such Indebtedness outstanding on the date hereof;

                  (e)  Indebtedness of a Guarantor to the Borrower or any other
         Guarantor or of the Borrower to any Guarantor;

                  (f)  Indebtedness  of  the Borrower or any of its Subsidiaries
         in respect of derivative contracts  entered into in the ordinary course
         of business and not for speculative purposes;

                  (g)  Indebtedness  of any Person that becomes a Subsidiary  of
         the Borrower after the date hereof pursuant to a Permitted  Acquisition
         so long as (i) such Indebtedness  existed at the time of such Permitted
         Acquisition  and was not created in  anticipation  thereof and (ii) the
         aggregate   outstanding   principal  amount  of  Indebtedness  incurred
         pursuant to this Section 8.1(g)  does not exceed  $1,000,000 at any one
         time outstanding;

                  (h)  Indebtedness  of the Borrower  arising as a result of the
         Borrower's  reduction of the number of stock  options of an employee at
         the time of such employee's  exercise of its stock options  pursuant to
         any Stock Option Plan and the Borrower's  agreement to subsequently pay
         the employee's  taxes  resulting



         from such exercise  provided that such tax payments are not overdue for
         more than thirty (30) days;

                  (i)  Indebtedness  of the Borrower or any of its  Subsidiaries
         arising  from such  Person's  guaranty  of lease  payments of a Foreign
         Subsidiary  provided that such guaranty is made in the ordinary  course
         of business  consistent with past practices (or with respect to Foreign
         Subsidiaries  acquired or created  after the Closing  Date,  consistent
         with the Borrower's foreign operations as of the Closing Date);

                  (j) unsecured  guaranties or other  contingent  obligations or
         commitments  of the Borrower or any of the  Guarantors  as set forth in
         clause (k) of the definition of the term  "Indebtedness"  in respect of
         Indebtedness  of the  Borrower or any of the  Guarantors  to the extent
         such Indebtedness is otherwise permitted under this Section 8.1; and

                  (k) additional  Indebtedness (whether similar or dissimilar to
         other   Indebtedness   in  this  Section 8.1)  of  the  Borrower or any
         Subsidiary (excluding Inactive  Subsidiaries) in an aggregate principal
         amount not to exceed $2,000,000 at any one time outstanding.

         8.2.  Restrictions on Liens.

         The Borrower will not, and will not permit any of its  Subsidiaries to,
(a) create or incur or suffer to be created  or  incurred  or to exist any lien,
encumbrance, mortgage, pledge, charge, restriction or other security interest of
any kind upon any of its property or assets of any  character  whether now owned
or hereafter acquired, or upon the income or profits therefrom; (b) transfer any
of such property or assets or the income or profits therefrom for the purpose of
subjecting the same to the payment of  Indebtedness  or performance of any other
obligation  in priority to payment of its general  creditors;  (c)  acquire,  or
agree or have an option to acquire, any property or assets upon conditional sale
or other  title  retention  or  purchase  money  security  agreement,  device or
arrangement;  (d)  suffer to exist for a period  of more than  thirty  (30) days
after the same  shall have been  incurred  any  Indebtedness  or claim or demand
against it that if unpaid  might by law or upon  bankruptcy  or  insolvency,  or
otherwise,  be given any priority whatsoever over its general creditors;  or (e)
sell,  assign,  pledge or  otherwise  transfer any  "receivables"  as defined in
clause  (g) of the  definition  of the  term  "Indebtedness,"  with  or  without
recourse;  provided that the Borrower or any of its  Subsidiaries  may create or
incur or suffer to be created or incurred or to exist:

                  (i)  liens  in  favor of  the  Borrower  on all or part of the
         assets  of  Subsidiaries  of the  Borrower  securing Indebtedness owing
         by Subsidiaries of the Borrower to the Borrower;

                  (ii) liens to secure taxes,  assessments and other  government
         charges  in  respect  of  obligations  not more than  thirty  (30) days
         overdue or which are being  contested in good faith and by  appropriate
         proceedings  diligently  conducted  and with respect to which  adequate
         reserves have been  established and are being  maintained in accordance
         with generally accepted accounting



         principles   or   liens   on   properties   to  secure    claims    for
         labor,   material   or    supplies   in   respect    of     obligations
         not more than thirty (30) days overdue or which are being  contested in
         good faith and by appropriate proceedings diligently conducted and with
         respect to which adequate  reserves have been established and are being
         maintained in accordance with generally accepted accounting principles;

                  (iii)  deposits  or pledges  made in  connection  with,  or to
         secure payment of, workmen's compensation,  unemployment insurance, old
         age pensions or other social security obligations;

                  (iv)   liens on  properties  in respect of judgments or awards
         not constituting an Event of Default under Section 12.1(i), but only so
         long as execution is not levied thereunder;

                  (v)   liens   of   carriers,   warehousemen,   mechanics   and
         materialmen,  and other like liens on properties in existence less than
         120 days from the date of  creation  thereof in respect of  obligations
         not more than twenty (20) days overdue or which are being  contested in
         good faith and by appropriate proceedings diligently conducted and with
         respect to which adequate  reserves have been established and are being
         maintained in accordance with generally accepted accounting principles;

                  (vi)  encumbrances  on Real Estate  consisting  of  easements,
         rights of way,  zoning  restrictions,  restrictions  on the use of real
         property  and  defects  and   irregularities   in  the  title  thereto,
         landlord's  or lessor's  liens under  leases to which the Borrower or a
         Subsidiary  of the  Borrower  is a  party,  and  other  minor  liens or
         encumbrances  none of which in the opinion of the  Borrower  interferes
         materially  with  the  use of the  property  affected  in the  ordinary
         conduct of the  business of the Borrower  and its  Subsidiaries,  which
         defects do not individually or in the aggregate have a Material Adverse
         Effect;

                  (vii)    liens  existing  on  the  date  hereof  and listed on
         Schedule 8.2 hereto;

                  (viii) purchase money security  interests in or purchase money
         mortgages on real or personal  property  acquired after the date hereof
         to secure purchase money  Indebtedness of the type and amount permitted
         by  Section 8.1(c),  incurred in  connection  with the  acquisition  of
         such property,  which  security  interests  or mortgages cover only the
         real or personal  property so acquired and  liens on personal  property
         arising under  Capitalized  Leases entered  into  after the date hereof
         securing Capitalized  Leases   of   the   type and amount  permitted by
         Section 8.1(c)  and covering only the personal property so leased;

                  (ix)  liens to secure  the  performance  of surety  and appeal
         bonds, performance bonds and similar obligations and liens arising from
         a  seller's  title  retention  provisions  with  respect  to goods  and
         services  acquired in the ordinary course of business,  in each case so
         long as proceedings to commence foreclosure in respect of any such lien
         shall not have commenced;



                  (x)  statutory  liens  of  landlords  on  security   deposits,
         statutory  liens of banks and rights of set-off and other liens imposed
         by law, in each case incurred in the ordinary course of business;

                  (xi) liens on assets of a Subsidiary of the Borrower  acquired
         after the  Closing  Date  pursuant to a  Permitted  Acquisition,  which
         security  interests  cover  only  the  assets  so  acquired,   securing
         Indebtedness  permitted  by  Section 8.1   hereof   provided   (1) such
         security   interests  were  not  created  in   contemplation   of  such
         Permitted Acquisition;  (2) such  security interests are terminated and
         discharged to the  satisfaction  of  the Bank  within  ninety (90) days
         of the date such Permitted Acquisition  is consummated;  and (3) within
         ten (10) Business  Days  after  the  date   of   consummation  of  such
         Permitted Acquisition  the Borrower shall   have provided to the Bank a
         description  of  any  liens or security  interests  existing as to such
         Subsidiary on such date together with a certification that arrangements
         are being made to  terminate  all security  interests  and liens within
         the time period  permitted by  subparagraph  (2) hereof (such liens and
         security  interests   being  hereinafter  referred to as the "Temporary
         Liens");

                  (xii)  a   disposition,   without   recourse,   of   defaulted
         receivables  for  collection  and not as a financing  arrangement  or a
         disposition  of  receivables,  with or without  recourse,  by a Foreign
         Subsidiary  in the  ordinary  course of  business  to the  extent  such
         disposition  is  consistent  with  customary  practices in such Foreign
         Subsidiary's country of business; and

                  (xiii) to the extent any term of any license or lease  entered
         into  in  the  ordinary  course  of  business  would  be  considered  a
         restriction upon property,  such license or lease, provided neither the
         Borrower  nor any  Subsidiary  has granted  any lien or other  security
         interest to any other Person in connection therewith.

         8.3.  Restrictions on Investments.

         The Borrower will not, and will not permit any of its  Subsidiaries to,
make  or  permit  to  exist  or to  remain  outstanding  any  Investment  except
Investments in:

                  (a)      Investments permitted by the Investment Policy as of
         the date when any such Investment is made;

                  (b)      Investments existing on the date hereof and listed on
         Schedule 8.3  hereto  and  any  renewals,  amendments  or  replacements
         thereof which do not increase the amount thereof;

                  (c)      Investments  with respect to  Indebtedness  permitted
         by Section 8.1(e) so long as such entities remain Guarantors hereunder;

                  (d)      Investments  consisting  of  the  Guaranty  or  other
         guarantees expressly permitted by Section 8.1;



                  (e) (i)  Investments  consisting  of  loans  and  advances  to
         employees for moving, entertainment,  travel and other similar expenses
         in the  ordinary  course  of  business  not to exceed  $500,000  in the
         aggregate  at  any  time  outstanding  and  (ii)  Investments  made  in
         connection with employees' compensation packages consisting of advances
         to  employees  for  moving,  entertainment,  travel  and other  similar
         expenses  in the  ordinary  course  of  business  consistent  with past
         practices;

                  (f) Investments made  after the date hereof in connection with
         Permitted Acquisitions;

                  (g) the Borrower and its  Subsidiaries (i) may make additional
         Investments  in  their  respective  Domestic  Subsidiaries   (excluding
         Inactive   Subsidiaries)   which  are  not  Guarantors   (whether  such
         Subsidiaries  are now existing or hereafter  created or acquired) in an
         aggregate  amount not to exceed  $50,000  at any one time  outstanding,
         (ii) may make Investments in their respective  Foreign  Subsidiaries as
         the initial  capitalization of such Foreign  Subsidiary in an aggregate
         amount  not  to  exceed   $250,000  for  any  Foreign   Subsidiary  and
         $10,000,000  in the  aggregate  for  all  Investments  in  all  Foreign
         Subsidiaries  during the term of this Credit  Agreement,  and (iii) may
         make additional  Investments in their respective  Foreign  Subsidiaries
         (whether  such  Subsidiaries  are now existing or hereafter  created or
         acquired) in an aggregate  amount not to exceed  $500,000 in any fiscal
         year;

                  (h) the Borrower  and  its  Subsidiaries  may  continue to own
         their  existing  Investments  in  the Japanese  Joint Venture as of the
         date of this Credit Agreement;

                  (i) Investments  consisting of loans and advances to officers,
         directors or employees  of the Borrower or any of its  Subsidiaries  or
         their  immediate  family  members or  relatives  thereof,  or trusts or
         partnerships  for the benefit of any of the  foregoing,  to finance the
         acquisition of common stock of the Borrower in an aggregate  amount not
         to exceed $500,000 at any one time outstanding;

                  (j)  Investments  by  the  Borrower  or any  Guarantor  in the
         Borrower or a Guarantor so long as, with respect to any Investment in a
         Guarantor,  such Person  remains a  Subsidiary  of the  Borrower  and a
         Guarantor hereunder; and

                  (k)  Investments by the Borrower made after the date hereof in
         joint  ventures  or other  minority  interests  in Persons  (other than
         Investments referred to elsewhere in this Section 8.3) in an  aggregate
         amount not to exceed  $10,000,000 in any fiscal year less the aggregate
         amount  expended by the  Borrower  in such  fiscal  year for  Permitted
         Acquisitions.

         8.4.  Restricted Payments.

         Neither  the  Borrower  nor  any  of its  Subsidiaries  will  make  any
Restricted  Payments;  provided,  however  (a) so long as no Default or Event of
Default has occurred and is continuing or would exist as a result  thereof,  the
Borrower or any Subsidiary shall be permitted to make Restricted  Payments,  (b)
any Subsidiary of



the Borrower shall be permitted to make  Restricted  Payments to the Borrower or
any Guarantor and shall be permitted to make  Distributions to its shareholders,
partners and other equity holders so long as such Distributions are declared and
paid ratably to the  shareholders,  partners  and other  equity  holders of such
Subsidiary and (c) the Borrower shall be permitted to make  Restricted  Payments
to any  Guarantor  and any  Guarantor  shall  be  permitted  to make  Restricted
Payments to the Borrower or any other Guarantor.

         8.5.  Merger, Consolidation and Disposition of Assets.

                  8.5.1.  Mergers and Acquisitions.

                  The  Borrower  will  not,  and  will  not  permit  any  of its
         Subsidiaries  to,  become a party to any  merger or  consolidation,  or
         effect any acquisition of capital stock of any other Person in a manner
         that causes such Person to become a  Subsidiary  of the Borrower or any
         acquisition of all or substantially  all of the assets of any Person or
         any division or business except (a) the merger or  consolidation of one
         or more of the Subsidiaries of the Borrower with and into the Borrower;
         (b) the  merger or  consolidation  of two or more  Subsidiaries  of the
         Borrower;  or (c) any  merger  or  asset or  stock  acquisition  by the
         Borrower or any of its  Subsidiaries  with or of Persons in the same or
         similar line of business as the Borrower,  (a "Permitted  Acquisition")
         where (1) the Borrower  has  provided  the Bank with written  notice of
         such  Permitted  Acquisition  within ten (10)  Business  Days after the
         consummation thereof,  which notice shall include a reasonably detailed
         description  of such  Permitted  Acquisition;  (2) the  business  to be
         acquired  would not subject the Bank to any  additional  regulatory  or
         third party approvals in connection with the exercise of its rights and
         remedies under this Credit Agreement or any other Loan Document; (3) no
         contingent  liabilities  will be incurred or assumed in connection with
         such Permitted Acquisition which could reasonably be expected to have a
         Material Adverse Effect,  and any  Indebtedness  incurred or assumed in
         connection with such Permitted Acquisition shall have been permitted to
         be incurred or assumed pursuant to  Section 8.1  hereof;  (4) after the
         consummation  of  the  Permitted   Acquisition,   to  the  extent  such
         acquisition was a stock acquisition,  either (A) the Person so acquired
         is  merged  with and  into the  Borrower  or its  Subsidiary,  with the
         Borrower or such Subsidiary,  as the case may be, being the survivor of
         such merger (but only to the extent such  Subsidiary is a Guarantor) or
         (B) to the extent such Person is not merged with and into the  Borrower
         or a Subsidiary,  such Person shall become a Guarantor hereunder to the
         extent  such Person is a  wholly-owned,  Domestic  Subsidiary;  (5) the
         aggregate  amount of the purchase price for all Permitted  Acquisitions
         (or series of related acquisitions) shall not exceed $10,000,000 in any
         fiscal  year  less the  aggregate  amount  of  Investments  made by the
         Borrower in such fiscal year pursuant to Section 8.3(k);  (6) the board
         of directors and  the  shareholders (if required by applicable law), or
         the equivalent,  of each of the  Borrower and the Person to be acquired
         has  approved  such  merger,  consolidation   or  acquisition  and such
         Permitted Acquisition  is not  considered "hostile";  (7) no Default or
         Event of Default  then  exists  or  would  result  after giving  effect
         to the  Permitted  Acquisition; and (8) within  ten (10) Business  Days
         after the date of consummation of such Permitted Acquisition,  the



         Borrower  shall  have  provided   to   the   Bank a description of each
         Temporary  Lien   together  with a certification  that arrangements are
         being made to terminate all such  Temporary   Liens  within  the   time
         period permitted by Section 8.2(xi)(2).

                  8.5.2.  Disposition of Assets.

                  The  Borrower  will  not,  and  will  not  permit  any  of its
         Subsidiaries  to,  become  a  party  to  or  agree  to  or  effect  any
         disposition  of assets,  other than (a) Excluded  Dispositions  and (b)
         Asset Sales,  the Net Cash Sale Proceeds of which are applied  pursuant
         to the terms  of   Section 3.2.2;  provided, (i) no Default or Event of
         Default has occurred and is continuing at the  time of such Asset Sale;
         (ii) the  fair  market  value  of  all assets  sold in any fiscal  year
         pursuant to Asset Sales does not exceed, in the aggregate,  $1,000,000;
         (iii) the Person selling such asset receives 100% of the purchase price
         in  cash;  and (iv) the  purchase  price  received  by  such  Person in
         connection  with any Asset Sale is not less than the fair market  value
         of the  property being sold in the good faith opinion of such Person.

         8.6.  Sale and Leaseback.

         The Borrower will not, and will not permit any of its  Subsidiaries to,
enter into any arrangement,  directly or indirectly, whereby the Borrower or any
Subsidiary  of the Borrower  shall sell or transfer any property  owned by it in
order then or thereafter to lease such property or lease other property that the
Borrower or any Subsidiary of the Borrower intends to use for  substantially the
same purpose as the property being sold or transferred.

         8.7.  Compliance with Environmental Laws.

         The Borrower will not, and will not permit any of its  Subsidiaries to,
(a) use  any of the  Real  Estate  or any  portion  thereof  for  the  handling,
processing,  storage or disposal of Hazardous Substances, (b) cause or permit to
be located on any of the Real Estate any underground  tank or other  underground
storage  receptacle  for  Hazardous  Substances,   (c)  generate  any  Hazardous
Substances  on any of the Real  Estate,  (d)  conduct  any  activity at any Real
Estate  or use any Real  Estate in any  manner  so as to cause a  release  (i.e.
releasing, spilling, leaking, pumping, pouring, emitting, emptying, discharging,
injecting,  escaping,  leaching,  disposing or dumping) or threatened release of
Hazardous  Substances on, upon or into the Real Estate or (e) otherwise  conduct
any  activity at any Real Estate or use any Real Estate in any manner that would
violate  any  Environmental  Law or bring such Real Estate in  violation  of any
Environmental Law, in each case in any manner that would have a Material Adverse
Effect.

         8.8.  Employee Benefit Plans.

         Neither the Borrower nor any ERISA Affiliate will,  except as could not
reasonably be expected to have a Material Adverse Effect,:

                  (a)  engage in any "prohibited  transaction" within the
         meaning of Section 406 of ERISA or Section 4975 of the Code which could
         result  in  a  material  liability  for  the  Borrower  or  any  of its
         Subsidiaries; or

                  (b)  permit   any   Guaranteed   Pension   Plan  to  incur  an
         "accumulated  funding  deficiency", as  such term is defined in Section
         302 of ERISA, whether or not such deficiency is or may be waived; or



                  (c) fail to  contribute to any  Guaranteed  Pension Plan to an
         extent  which,  or terminate  any  Guaranteed  Pension Plan in a manner
         which,  could result in the  imposition of a lien or encumbrance on the
         assets of the Borrower or any of its Subsidiaries pursuant  to  Section
         302(f) or Section 4068 of ERISA; or

                  (d) amend   any  Guaranteed  Pension  Plan  in   circumstances
         requiring  the   posting   of   security   pursuant  to Section 307 of
         ERISA or Section 401(a)(29) of the Code; or

                  (e)  permit  or take any  action  which  would  result  in the
         aggregate  benefit  liabilities  (with the  meaning  of Section 4001 of
         ERISA)  of all  Guaranteed  Pension  Plans  exceeding  the value of the
         aggregate assets  of such  Plans, disregarding  for  this  purpose  the
         benefit liabilities   and   assets  of any such  Plan  with  assets  in
         excess of benefit liabilities.

         8.9.  Business Activities.

         The Borrower will not, and will not permit any of its  Subsidiaries to,
be primarily  engaged directly or indirectly  (whether  through  Subsidiaries or
otherwise) in any type of business other than the  businesses  conducted by them
on the Closing Date and in related or similar businesses.

         8.10.  Fiscal Year.

         The Borrower will not, and will not permit any of it  Subsidiaries  to,
change  the  date  of  the  end  of  its  fiscal  year  from  that  set forth in
Section 6.4.1.

         8.11.  Transactions with Affiliates.

         Except  for (a) those  transactions  set forth on  Schedule  6.14,  (b)
ordinary  course  dealings  with  Foreign  Subsidiaries  conducted  in a  manner
consistent with past practices (or with respect to Foreign Subsidiaries acquired
or created after the Closing  Date,  conducted in a manner  consistent  with the
Borrower's  foreign  operations as of the Closing  Date),  and (c)  transactions
between the Borrower and a Guarantor or between  Guarantors,  the Borrower  will
not, and will not permit any of its  Subsidiaries  to, engage in any transaction
with  any  Affiliate  (other  than  for  services  as  employees,  officers  and
directors), including any contract, agreement or other arrangement providing for
the  furnishing  of services to or by,  providing for rental of real or personal
property  to or  from,  or  otherwise  requiring  payments  to or from  any such
Affiliate on terms more favorable to such Person than would have been obtainable
on an arm's-length basis in the ordinary course of business.

         8.12.  Upstream Limitations.

         The Borrower will not, and will not permit any of its  Subsidiaries to,
enter  into any  agreement,  contract  or  arrangement  (other  than the  Credit
Agreement  and  the  other  Loan  Documents)  restricting  the  ability  of  any
Subsidiary  to pay or make  dividends  or  distributions  in cash or kind to the
Borrower,  to make loans, advances or other payments of whatsoever nature to the
Borrower, or to make transfers or distributions of all or any part of its assets
to the Borrower,  provided that (a) the foregoing will not apply to restrictions
or  conditions  imposed by law and (b) the  foregoing,  insofar as it relates to
restrictions  on  transfers,   will  not  apply  to  customary   anti-assignment
provisions in leases,  licensing  agreements and other  non-financing  contracts
entered into by the Borrower or such  Subsidiary  in the ordinary  course of its
business or to  restrictions  or conditions  imposed by agreements  with Persons



prohibiting any such  restriction on transfer on assets in which such Person has
a security interest which is permitted by Section 8.2

         8.13.  Inconsistent Agreements.

         The Borrower will not, and will not permit any of its  Subsidiaries to,
enter into any agreement  containing  any  provision  which would be violated or
breached by the performance by the Borrower or any of its  Subsidiaries of their
respective  obligations  hereunder  or  under  any of the  Loan  Documents,  the
violation  of which could  reasonably  be  expected  to have a Material  Adverse
Effect.

         8.14.  Modification of Capitalization Documents.

         The Borrower will not, nor will it permit any of its  Subsidiaries  to,
consent to or agree to any material amendment,  supplement or other modification
to the  Capitalization  Documents  without the prior written consent of the Bank
except for any such amendment,  supplement or modification  which would not have
any  adverse  effect  on the  Bank's  rights  under  the Loan  Documents  or the
Borrower's or any of its  Subsidiaries'  obligations under the Loan Documents or
which  is  being  effected  in  connection  with any  transaction  permitted  by
Section 8.5.1.

         8.15.  Negative Pledge.

         Except as set forth on Schedule  8.15,  the Borrower will not, and will
not permit any of its Subsidiaries to, enter into any agreement  (excluding this
Credit  Agreement  and the other  Loan  Documents  and any  document  evidencing
Indebtedness   of  a  Subsidiary  of  the  Borrower   acquired  in  a  Permitted
Acquisition,  but only so long as the  Temporary  Lien is  permitted  to  exist)
prohibiting the creation or assumption of any lien upon its properties, revenues
or assets or those of any of its  Subsidiaries,  whether now owned or  hereafter
acquired other than (a)  agreements  with Persons  prohibiting  any such lien on
assets in which such  Person  has a  security  interest  which is  permitted  by
Section  8.2,  (b)  restrictions   or   conditions   imposed   by  law  and  (c)
customary  anti-assignment   provisions   in   leases,   licensing    agreements
and  other non-financing   contracts   entered   into   by  the Borrower or such
Subsidiary in the ordinary course of its business.

                     9. FINANCIAL COVENANTS OF THE BORROWER.

         The Borrower covenants and agrees that, so long as any Revolving Credit
Loan, Unpaid Reimbursement Obligation, Letter of Credit or Revolving Credit Note
is outstanding or the Bank has any obligation to make any Revolving Credit Loans
or to issue, extend or renew any Letters of Credit:

         9.1.  Leverage Ratio.

         The Borrower will not permit the Leverage Ratio to exceed  1.00:1.00 as
of the last day of any quarter of any fiscal year of the Borrower.

         9.2.  Quick Ratio.

         The Borrower will not permit the ratio of Consolidated  Quick Assets to
Consolidated Current Liabilities to be less than 1.25:1.00 at any time.

         9.3.  Profitable Operations.

         The  Borrower  will not permit  the sum of  (without  duplication)  (a)
Consolidated  PreTax Income plus (b) total interest  expense paid or accrued for
such  period  (including  payments  consisting  of  interest  in  respect of any



Capitalized  Lease or any Synthetic Lease and including  commitment fees, agency
fees,  facility fees,  balance  deficiency  fees and similar fees or expenses in
connection with the borrowing of money), plus (c) all extraordinary nonrecurring
non-cash items of expense and minus (d) all extraordinary  nonrecurring items of
income for any four consecutive  fiscal quarters (treated as a single accounting
period) to be less than $10,000,000.00.

                             10. CLOSING CONDITIONS.

         The obligations of the Bank to make the initial  Revolving Credit Loans
and to issue any initial Letters of Credit shall be subject to the  satisfaction
of the following conditions precedent:

         10.1.  Loan Documents.

         Each of the Loan Documents  shall have been duly executed and delivered
by the respective  parties thereto,  shall be in full force and effect and shall
be in form and substance  satisfactory to the Bank. The Bank shall have received
a fully executed copy of each such document.

         10.2.  Certified Copies of Charter Documents.

         The  Bank  shall  have  received  from  the  Borrower  and  each of the
Guarantors a copy,  certified by a duly authorized  officer of such Person to be
true and  complete  on the  Closing  Date,  of each of (i) its  charter or other
incorporation documents as in effect on such date of certification, and (ii) its
by-laws as in effect on such date.

         10.3.  Corporate Action.

         All corporate action  necessary for the valid  execution,  delivery and
performance by the Borrower and each of the Guarantors of this Credit  Agreement
and the other Loan  Documents  to which it is or is to become a party shall have
been duly and effectively  taken, and evidence thereof  satisfactory to the Bank
shall have been provided to the Bank.

         10.4.  Incumbency Certificate.

         The  Bank  shall  have  received  from  the  Borrower  and  each of the
Guarantors an incumbency certificate,  dated as of the Closing Date, signed by a
duly authorized  officer of the Borrower or such Guarantor,  and giving the name
and bearing a specimen signature of each individual who shall be authorized: (a)
to sign,  in the name and on behalf of each of the  Borrower or such  Guarantor,
each of the Loan  Documents to which the Borrower or such  Guarantor is or is to
become a party;  (b) in the case of the  Borrower,  to make  Loan  Requests  and
Conversion  Requests and to apply for Letters of Credit; and (c) to give notices
and to take other action on its behalf under the Loan Documents.

         10.5.   UCC Search Results.

         The Bank shall have received the results of UCC searches  indicating no
liens  other  than   Permitted   Liens  and  otherwise  in  form  and  substance
satisfactory to the Bank.

         10.6.  Certificates of Insurance.

         The Bank  shall  have  received  a  certificate  of  insurance  from an
independent insurance broker dated as of the Closing Date, identifying insurers,
types of insurance, insurance limits, and policy terms.



         10.7.  Opinion of Counsel.

         The Bank shall have received a favorable legal opinion addressed to the
Bank,  dated as of the Closing Date, in form and substance  satisfactory  to the
Bank from  Palmer & Dodge LLP,  counsel to the  Borrower  and its  Subsidiaries,
which counsel may rely on opinions of local counsel.

         10.8.  Payment of Fees.

         The  Borrower  shall have paid to the Bank the closing fee  pursuant to
Section 5.1 and all other fees due and payable hereunder.

         10.9.  No Material Adverse Change.

         The Bank shall be satisfied  that there shall have occurred no material
adverse  change in the  business,  operations,  assets,  properties or condition
(financial or otherwise) of the Borrower,  individually, or the Borrower and its
Subsidiaries, taken as a whole, since the Balance Sheet Date.

         10.10.  Compliance Certificate.

         The Bank shall have received from the Borrower a Compliance Certificate
setting forth the Borrower's Leverage Ratio as of March 31, 2000.

         10.11.  Proceedings and Documents.

         All  proceedings in connection  with the  transactions  contemplated by
this Credit Agreement, the other Loan Documents and all other documents incident
thereto  shall  be  satisfactory  in  substance  and in form to the Bank and the
Bank's  Special  Counsel,  and the Bank and such counsel shall have received all
information and such counterpart  originals or certified or other copies of such
documents as the Bank may reasonably request.

                        11. CONDITIONS TO ALL BORROWINGS.

         The  obligations  of the Bank to make any Revolving  Credit Loan and to
issue,  extend or renew any Letter of Credit,  in each case  whether on or after
the Closing  Date,  shall also be subject to the  satisfaction  of the following
conditions precedent:

         11.1.  Representations True; No Event of Default.

         Each of the  representations  and warranties of any of the Borrower and
its Subsidiaries contained in this Credit Agreement, the other Loan Documents or
in  any  document  or  instrument  delivered  by  the  Borrower  or  any  of its
Subsidiaries  pursuant to or in connection  with this Credit  Agreement shall be
true in all  material  respects  as of the date as of which  they  were made and
shall also be true in all material  respects at and as of the time of the making
of such  Revolving  Credit Loan or the  issuance,  extension  or renewal of such
Letter of Credit, with the same effect as if made at and as of that time (except
to the extent of changes resulting from  transactions  contemplated or permitted
by this Credit  Agreement and the other Loan Documents and changes  occurring in
the  ordinary  course  of  business  that  singly  or in the  aggregate  are not
materially  adverse  to  the  business,  properties,   condition  (financial  or
otherwise),  assets,  operations  or income of the Borrower and the  Guarantors,
taken as a whole,  and to the extent that such  representations  and  warranties
relate  expressly to an earlier  date) and no Default or Event of Default  shall
have  occurred  and be  continuing.  Each Loan  Request and each request for the
issuance,  extension or renewal of a Letter of Credit  submitted by the Borrower
to  the  Bank  shall  constitute  a  certification  by  the  Borrower as to this
Section 11.1 as of



the date the  related  Revolving  Credit  Loan is made or  Letter  of  Credit is
issued, renewed or extended.

         11.2.  No Legal Impediment.

         No change shall have occurred in any law or  regulations  thereunder or
interpretations thereof that in the reasonable opinion of the Bank would make it
illegal for the Bank to make such Revolving  Credit Loan or to issue,  extend or
renew such Letter of Credit.

         11.3.  Governmental Regulation.

         The Bank shall have  received  such  statements  in substance  and form
reasonably satisfactory to the Bank as the Bank shall require for the purpose of
compliance with any applicable regulations of the Comptroller of the Currency or
the Board of Governors of the Federal Reserve System.

                    12. EVENTS OF DEFAULT; ACCELERATION; ETC.

         12.1.  Events of Default and Acceleration.

         If any of the following  events  ("Events of Default" or, if the giving
of notice or the lapse of time or both is required,  then,  prior to such notice
or lapse of time, "Defaults") shall occur:

                  (a)  the  Borrower  shall  fail to pay  any  principal  of the
         Revolving  Credit Loans or any  Reimbursement  Obligation when the same
         shall become due and payable, whether at the stated date of maturity or
         any  accelerated  date of  maturity  or at any  other  date  fixed  for
         payment;

                  (b)  the  Borrower  shall  fail  to pay  any  interest  on the
         Revolving Credit Loans, the commitment fee, any Letter of Credit Fee or
         other  sums due  hereunder  or under any of the other  Loan  Documents,
         within three (3) days after the date when the same shall become due and
         payable, whether at the stated date of maturity or any accelerated date
         of maturity or at any other date fixed for payment;

                  (c)  the  Borrower  shall  fail  to  comply  with  any  of its
         covenants  contained  in  Sections  7.1,  7.4(a),  (b)  and (c), 7.5.1,
         7.6 (a), 7.12, 7.14 or 7.16, 8 or 9;

                  (d) (i) the  Borrower  shall  fail to  comply  with any of its
         covenants  contained   in   Section 7.4 (other  than  those   specified
         elsewhere in   this  Section 12.1) within   five (5) days after written
         notice of such failure has been given  to  the  Borrower by the Bank or
         (ii) the Borrower or any Guarantor  shall  fail to  perform  any  term,
         covenant  or  agreement contained  herein  or in any of the other  Loan
         Documents  (other   than  those   specified  elsewhere  in this Section
         12.1) to which it is a party for twenty (20) days after  written notice
         of such failure has been given to the Borrower by the Bank;

                  (e) any  representation  or warranty of the Borrower or any of
         its  Subsidiaries  in this  Credit  Agreement  or any of the other Loan
         Documents or in any other document or instrument  delivered pursuant to
         or in connection  with



         this Credit  Agreement  shall prove to have been false in  any material
         respect   upon  the  date   when   made  or deemed to have been made or
         repeated;

                  (f) the Borrower or any of its Subsidiaries  shall (i) fail to
         pay at  maturity,  or  within  any  applicable  period  of  grace,  any
         obligation for borrowed  money or credit  received or in respect of any
         Capitalized Leases, in each case, in an individual  principal amount of
         $1,000,000  or more,  or (ii) fail to observe or perform  any  material
         term,  covenant or agreement  contained in any agreement by which it is
         bound,  evidencing or securing  borrowed money or credit received or in
         respect of any Capitalized Leases in an amount equal to or greater than
         the individual  principal amount specified in clause (i) above for such
         period of time as would  permit  (assuming  the  giving of  appropriate
         notice if required) the holder or holders thereof or of any obligations
         issued  thereunder  to  accelerate  the maturity  thereof,  or any such
         holder or holders  shall  rescind or shall have a right to rescind  the
         purchase of any such obligations;

                  (g)  the  Borrower  or any of its  Subsidiaries  shall  make a
         general  assignment  for the benefit of creditors,  or admit in writing
         its inability to pay or generally  fail to pay its debts as they mature
         or become due,  or shall  petition  or apply for the  appointment  of a
         trustee or other  custodian,  liquidator or receiver of the Borrower or
         any of its Subsidiaries or of any substantial part of the assets of the
         Borrower or any of its Subsidiaries or shall commence any case or other
         proceeding  relating to the Borrower or any of its  Subsidiaries  under
         any bankruptcy,  reorganization,  arrangement, insolvency, readjustment
         of debt, dissolution or liquidation or similar law of any jurisdiction,
         now or hereafter in effect, or shall take any action to authorize or in
         furtherance  of any of  the  foregoing,  or if  any  such  petition  or
         application  shall be filed or any such case or other  proceeding shall
         be commenced  against the Borrower or any of its  Subsidiaries  and the
         Borrower  or any of its  Subsidiaries  shall  indicate  in writing  its
         approval  thereof,  consent  thereto  or  acquiescence  therein or such
         petition or application shall not have been dismissed within sixty (60)
         days following the filing thereof;

                  (h) a  decree  or  order is  entered  by a court of  competent
         jurisdiction  appointing  any such  trustee,  custodian,  liquidator or
         receiver of the Borrower or any of its  Subsidiaries or any substantial
         part  of the  assets  of the  Borrower  or any of its  Subsidiaries  or
         adjudicating  the  Borrower  or  any of its  Subsidiaries  bankrupt  or
         insolvent,   or  approving  a  petition  in  any  such  case  or  other
         proceeding,  or a decree or order for  relief is  entered in respect of
         the Borrower or any Subsidiary of the Borrower in an  involuntary  case
         under federal bankruptcy laws as now or hereafter constituted;

                  (i) a final  judgment or judgments for the payment of money in
         excess of $1,000,000 in the  aggregate  (exclusive of judgment  amounts
         covered  by  insurance)  shall  be  rendered  by  one or  more  courts,
         administrative  tribunals or other bodies having  jurisdiction  against
         the  Borrower  or any of its  Subsidiaries  and the same  shall  not be
         discharged  (or  provision  shall  not be made for such



         discharge)  or vacated,  or  a  stay  of execution thereof shall not be
         procured,  within thirty (30) days  from  the date of entry thereof and
         the Borrower or the relevant  Subsidiary shall  not, within said period
         of thirty (30) days, or such longer  period during  which  execution of
         the  same  shall  have  been  stayed,  appeal  therefrom  and cause the
         execution  thereof to be stayed during such appeal;

                  (j)  if  any  of  the  Loan  Documents   shall  be  cancelled,
         terminated,  revoked  or  rescinded,  in each  case  otherwise  than in
         accordance  with the terms  thereof or hereof or with the express prior
         written  agreement,  consent or approval of the Bank,  or any action at
         law, suit or in equity or other legal  proceeding to cancel,  revoke or
         rescind any of the Loan Documents shall be commenced by or on behalf of
         the Borrower or any of its  Subsidiaries  party thereto or any of their
         respective  stockholders,  or any  court or any other  governmental  or
         regulatory  authority or agency of competent  jurisdiction shall make a
         determination that, or issue a judgment, order, decree or ruling to the
         effect that, any one or more of the Loan Documents is illegal,  invalid
         or unenforceable in accordance with the terms thereof;

                  (k) the Borrower or any ERISA  Affiliate  incurs any liability
         to the PBGC or a Guaranteed  Pension Plan pursuant to Title IV of ERISA
         in an aggregate amount exceeding $500,000, or the Borrower or any ERISA
         Affiliate  is  assessed  withdrawal  liability  pursuant to Title IV of
         ERISA by a  Multiemployer  Plan  requiring  aggregate  annual  payments
         exceeding  $500,000,  or any of the following  occurs with respect to a
         Guaranteed Pension Plan: (i) an ERISA Reportable Event, or a failure to
         make a required  installment  or other  payment  (within the meaning of
         Section 302(f)(1) of ERISA),   provided  that  it  could  reasonably be
         expected that such event (A) could be expected  to result in  liability
         of  the    Borrower  or  any of its  Subsidiaries  to the  PBGC or such
         Guaranteed Pension Plan in an aggregate  amount exceeding  $500,000 and
         (B) could constitute  grounds  for  the  termination of such Guaranteed
         Pension   Plan  by the PBGC,  for the  appointment  by the  appropriate
         United  States   District   Court of a   trustee   to   administer such
         Guaranteed  Pension Plan or for the  imposition  of a  lien in favor of
         such  Guaranteed  Pension Plan; or (ii) the  appointment  by  a  United
         States  District   Court of a trustee  to  administer  such  Guaranteed
         Pension  Plan;  or (iii) the   institution  by the PBGC of  proceedings
         to terminate  such  Guaranteed Pension Plan;

                  (l) the Borrower or any of its Subsidiaries shall be enjoined,
         restrained  or in any way  prevented  by the  order of any court or any
         administrative  or regulatory  agency from conducting any material part
         of its business,  the Borrower or such  Subsidiary  shall have complied
         with such order and such order  shall  continue in effect for more than
         thirty (30) days and,  with  respect to a  Subsidiary  of the  Borrower
         only,  such order could  reasonably be expected to result in a Material
         Adverse Effect; or

                  (m) any  person or group of  persons  (within  the  meaning of
         Section 13 or 14 of the  Securities  Exchange Act of 1934,  as amended)
         shall have acquired



         beneficial     ownership  (within   the     meaning    of   Rule  13d-3
         promulgated   by   the  Securities  and Exchange  Commission under said
         Act) of 25% or more of the  outstanding  shares of common  stock of the
         Borrower or, during any period of twelve  consecutive  calendar months,
         individuals who were directors of the Borrower on the first day of such
         period (together with any new directors whose election by such board of
         directors or whose nomination for reelection by the shareholders of the
         Borrower was  approved by a vote of a majority of the  directors of the
         Borrower  then still in office who where either  directors on the first
         day of such period or whose  election or  nomination  for  election was
         previously  so  approved)  shall cease to  constitute a majority of the
         board of directors of the Borrower;

then, and in any such event, so long as the same may be continuing, the Bank may
by notice in writing to the Borrower  declare all amounts  owing with respect to
this Credit  Agreement,  the Revolving  Credit Note and the other Loan Documents
and all  Reimbursement  Obligations  to be, and they shall  thereupon  forthwith
become,  immediately due and payable  without  presentment,  demand,  protest or
other  notice  of any  kind,  all of which are  hereby  expressly  waived by the
Borrower;  provided  that in the  event of any  Event of  Default  specified  in
Sections 12.1(g) or 12.1(h),  all such amounts shall become  immediately due and
payable automatically and without any requirement of notice from the Bank.

         12.2.  Termination of Commitments.

         If any  one  or  more  of  the  Events  of Default specified in Section
12.1(g)  or  Section  12.1(h)  shall  occur,  any  unused  portion of the credit
hereunder  shall  forthwith  terminate  and the Bank  shall be  relieved  of all
further obligations to make Revolving Credit Loans to the Borrower and to issue,
extend or renew  Letters of  Credit.  If any other  Event of Default  shall have
occurred and be  continuing,  the Bank may by notice to the Borrower,  terminate
the unused  portion of the credit  hereunder,  and upon such notice  being given
such unused portion of the credit hereunder shall terminate  immediately and the
Bank shall be relieved of all further obligations to make Revolving Credit Loans
and to issue,  extend or renew Letters of Credit.  No  termination of the credit
hereunder  shall relieve the Borrower or any of its  Subsidiaries  of any of the
Obligations.

         12.3.  Remedies.

         In case any one or more of the  Events of Default  shall have  occurred
and be  continuing,  and  whether  or not the Bank shall  have  accelerated  the
maturity of the Revolving  Credit Loans  pursuant to Section 12.1,  the Bank, if
owed any amount with respect to the Revolving Credit Loans or the  Reimbursement
Obligations,  may  proceed to protect  and enforce its rights by suit in equity,
action  at law  or  other  appropriate  proceeding,  whether  for  the  specific
performance of any covenant or agreement  contained in this Credit Agreement and
the other Loan Documents or any instrument  pursuant to which the Obligations to
the Bank are  evidenced,  including as permitted by applicable law the obtaining
of the ex parte appointment of a receiver, and, if such amount shall have become
due, by declaration or otherwise,  proceed to enforce the payment thereof or any
other legal or equitable right of the Bank. No remedy herein  conferred upon the
Bank or the holder of any Revolving Credit Note is intended to be



exclusive of any other remedy and each and every remedy shall be cumulative  and
shall be in addition to every other remedy  given  hereunder or now or hereafter
existing at law or in equity or by statute or any other provision of law.

                                   13. SETOFF.

         Regardless of the adequacy of any collateral, during the continuance of
any Default under Section 12.1(b) or any Event of Default, any deposits credited
by or due from the Bank to the Borrower may be applied to or set off by the Bank
against the payment of Obligations of the Borrower to the Bank without notice to
the Borrower, which is hereby expressly waived by the Borrower.

                        14. EXPENSES AND INDEMNIFICATION.

         14.1.  Expenses.

         The Borrower  agrees to pay (a) the  reasonable  costs of producing and
reproducing  this  Credit  Agreement,  the other  Loan  Documents  and the other
agreements  and  instruments  mentioned  herein,  (b) any taxes  (including  any
interest and penalties in respect thereto) payable by the Bank (other than taxes
based  upon the  Bank's  net  income)  on or with  respect  to the  transactions
contemplated by this Credit Agreement (the Borrower hereby agreeing to indemnify
the  Bank  with  respect  thereto),   (c)  the  reasonable  fees,  expenses  and
disbursements  of the Bank's  Special  Counsel or any local  counsel to the Bank
incurred in connection with the preparation,  execution and delivery of the Loan
Documents and other  instruments  mentioned  herein,  (d) the  reasonable  fees,
expenses and disbursements of the Bank's Special Counsel or any local counsel to
the Bank incurred in connection with the administration or interpretation of the
Loan Documents and other instruments  mentioned herein,  each closing hereunder,
any  amendments,  modifications,   approvals,  consents  or  waivers  hereto  or
hereunder, or the cancellation of any Loan Document upon payment in full in cash
of all of the  Obligations  or pursuant to any terms of such Loan  Document  for
providing for such cancellation, (e) the fees, expenses and disbursements of the
Bank  or any of its  affiliates  incurred  by the  Bank  or  such  affiliate  in
connection with the preparation,  administration  or  interpretation of the Loan
Documents  and  other   instruments   mentioned   herein,   (f)  all  reasonable
out-of-pocket  expenses (including without limitation reasonable attorneys' fees
and  costs,  which  attorneys  may be  employees  of the  Bank,  and  reasonable
consulting,  accounting,  appraisal, investment banking and similar professional
fees and charges) incurred by the Bank in connection with (i) the enforcement of
or preservation  of rights under any of the Loan Documents  against the Borrower
or any of its Subsidiaries or the administration thereof after the occurrence of
a Default or Event of Default  and (ii) any  litigation,  proceeding  or dispute
arising  hereunder or under any of the other Loan Documents,  in any way related
to the Bank's  relationship with the Borrower or any of its Subsidiaries and (g)
without  duplication of any amount paid by the Borrower under clause (c), (d) or
(e) above, all reasonable fees,  expenses and disbursements of the Bank incurred
in connection with UCC searches.

         14.2.  Indemnification.

         The  Borrower  agrees to indemnify  and hold  harmless the Bank and its
affiliates  from and  against  any and all  claims,  actions  and suits  whether



groundless or otherwise,  and from and against any and all liabilities,  losses,
damages and  expenses of every nature and  character  arising out of this Credit
Agreement or any of the other Loan  Documents or the  transactions  contemplated
hereby  including,  without  limitation,  (a) any actual or proposed  use by the
Borrower or any of its  Subsidiaries  of the  proceeds  of any of the  Revolving
Credit Loans or Letters of Credit,  (b) the Borrower or any of its  Subsidiaries
entering  into or  performing  this  Credit  Agreement  or any of the other Loan
Documents or (c) with respect to the  Borrower  and its  Subsidiaries  and their
respective  properties and assets,  the violation of any Environmental  Law, the
presence,  disposal,  escape, seepage, leakage, spillage,  discharge,  emission,
release or threatened release of any Hazardous  Substances or any action,  suit,
proceeding or investigation  brought or threatened with respect to any Hazardous
Substances  (including,  but not  limited to,  claims  with  respect to wrongful
death, personal injury or damage to property),  in each case including,  without
limitation, the reasonable fees and disbursements of counsel and allocated costs
of  internal  counsel  incurred  in  connection  with  any  such  investigation,
litigation or other  proceeding;  provided,  however,  that such indemnity shall
not, as to any  indemnitee  be  available  to the extent such  claims,  actions,
suits,  liabilities,  losses,  damages or expenses  have resulted from the gross
negligence  or willful  misconduct of such  indemnitee.  In  litigation,  or the
preparation  therefor,  the Bank and its affiliates  shall be entitled to select
their own counsel  and, in addition to the  foregoing  indemnity,  the  Borrower
agrees to pay promptly the reasonable fees and expenses of such counsel. If, and
to the extent that the  obligations  of the Borrower under this Section 14.2 are
unenforceable  for any reason,  the Borrower  hereby  agrees to make the maximum
contribution  to the  payment  in  satisfaction  of such  obligations  which  is
permissible under applicable law.

         14.3.  Survival.

         The  covenants  contained  in  this  Section 14 shall  survive  payment
or satisfaction in full of all other Obligations.

               15. TREATMENT OF CERTAIN CONFIDENTIAL INFORMATION.

         15.1.  Confidentiality.

         The Bank  agrees,  on  behalf  of  itself  and each of its  affiliates,
directors,   officers,   employees  and   representatives,   to  use  reasonable
precautions to keep confidential,  in accordance with their customary procedures
for handling confidential  information of the same nature and in accordance with
safe and sound banking practices,  any non-public  information supplied to it by
the  Borrower or any of its  Subsidiaries  pursuant  to this  Credit  Agreement,
provided that nothing herein shall limit the disclosure of any such  information
(a) after  such  information  shall have  become  public  other  than  through a
violation  of this  Section 15, (b) to the extent  required  by  statute,  rule,
regulation  or  judicial  process,  (c) to  counsel  for the  Bank,  (d) to bank
examiners or any other regulatory  authority having  jurisdiction over the Bank,
or to auditors or  accountants,  (e) to the Bank or any affiliate of the Bank to
the extent reasonably required in connection with the transactions  contemplated
by this Credit  Agreement,  (f) in connection  with any  litigation to which the
Bank or any affiliate of the Bank is a party in which the Bank has been required
or, in the opinion of its legal  counsel,  deems it  necessary  or  advisable to
produce such  information,  or in connection  with the  enforcement of rights or
remedies hereunder or under any other Loan Document, or (g) to any assignee or
participant (or prospective assignee or participant)



so long   as   such  assignee or participant  agrees (i) to treat in  confidence
such  information    unless    such   information    otherwise   becomes  public
knowledge,  (ii) not to  disclose  such information  to a third  party,  except
as   required  by   law   or   legal   process and (iii) not to make use of such
information   for   purposes   of  transactions   unrelated to such contemplated
assignment or participation.

         15.2.  Prior Notification.

         Unless  specifically  prohibited by applicable law or court order,  the
Bank shall, prior to disclosure thereof,  notify the Borrower of any request for
disclosure of any such  non-public  information  by any  governmental  agency or
representative  thereof  (other  than any such  request  in  connection  with an
examination of the financial condition of the Bank by such governmental  agency)
or pursuant to legal process.

         15.3.  Other.

         In no event  shall the Bank be  obligated  or  required  to return  any
materials  furnished  to it by the  Borrower  or any  of its  Subsidiaries.  The
obligations  of the Bank under this Section 15 shall  supersede  and replace the
obligations  of the Bank  under any  confidentiality  letter in  respect of this
financing  signed and  delivered by the Bank to the  Borrower  prior to the date
hereof  and  shall  be  binding  upon  any  assignee  of,  or  purchaser  of any
participation  in,  any  interest  in any  of  the  Revolving  Credit  Loans  or
Reimbursement Obligations from the Bank.

                         16. SURVIVAL OF COVENANTS, ETC.

         All covenants, agreements,  representations and warranties made herein,
in the  Revolving  Credit  Notes,  in any of the other Loan  Documents or in any
documents  or other  papers  delivered by or on behalf of the Borrower or any of
its Subsidiaries pursuant hereto shall be deemed to have been relied upon by the
Bank,  notwithstanding any investigation  heretofore or hereafter made by any of
them,  and shall survive the making by the Bank of any of the  Revolving  Credit
Loans and the issuance, extension or renewal of any Letters of Credit, as herein
contemplated,  and shall continue in full force and effect so long as any Letter
of Credit or any amount due under this Credit  Agreement or the Revolving Credit
Notes or any of the other Loan Documents remains outstanding or the Bank has any
obligation to make any Revolving  Credit Loans or to issue,  extend or renew any
Letter of Credit.  The  obligations  of the  Borrower  under  Section 14 of this
Credit  Agreement  shall survive the termination of this Credit  Agreement.  All
statements  contained in any certificate or other paper delivered to the Bank at
any time by or on behalf of the  Borrower  or any of its  Subsidiaries  pursuant
hereto  or  in  connection  with  the  transactions  contemplated  hereby  shall
constitute  representations  and  warranties by the Borrower or such  Subsidiary
hereunder.

                        17. ASSIGNMENT AND PARTICIPATION.

         17.1.  Assignment by Bank.

         The Bank may at any time or from time to time assign all or any portion
of its rights and  obligations  hereunder and under the other Loan  Documents to
one or more banks or other financial  institutions (each an "Assignee") but only
with  the  prior  written  consent  of  the  Borrower,  such  consent  not to be
unreasonably  withheld,  provided  that  the  Borrower's  consent  shall  not be
required in



the  case of any  assignment  effected  while an Event  of  Default  shall  have
occurred and be continuing  and the Borrower  agrees that it shall  execute,  or
cause to be executed, such documents,  including without limitation,  amendments
to this Credit Agreement and to any other documents,  instruments and agreements
executed in connection  herewith as the Bank shall deem  necessary to effect the
foregoing.  In addition,  at the request of the Bank and any such Assignee,  the
Borrower shall issue one or more new  promissory  notes,  as applicable,  to any
such  Assignee  and, if the Bank has retained any of its rights and  obligations
hereunder  following such  assignment,  to the Bank,  which new promissory notes
shall be issued in  replacement  of,  but not in  discharge  of,  the  liability
evidenced by the promissory  note held by the Bank prior to such  assignment and
shall reflect the amount of the  respective  commitments  and loans held by such
Assignee and the Bank after giving  effect to such  assignment.  Upon the Banks'
receipt of any consent from the Borrower  required  under this Section 17.1, the
execution and delivery of appropriate assignment  documentation,  amendments and
any other documentation required by the Bank in connection with such assignment,
and the payment by Assignee of the purchase price agreed to by the Bank and such
Assignee, such Assignee shall be a party to this Credit Agreement and shall have
all of the rights and  obligations  of a bank  hereunder  (and under any and all
other guaranties,  documents,  instruments and agreements executed in connection
herewith) to the extent that such rights and  obligations  have been assigned by
the Bank  pursuant  to the  assignment  documentation  between the Bank and such
Assignee,  and the Bank shall be released  from its  obligations  hereunder  and
thereunder to a corresponding extent. Anything contained in this Section 17.1 to
the contrary notwithstanding, the Bank may at any time pledge all or any portion
of its  interest and rights under this Credit  Agreement  (including  all or any
portion of its Revolving Credit Note) to any of the twelve Federal Reserve Banks
organized under Section 4 of the Federal Reserve Act, 12 U.S.C.  Section 341. No
such  pledge  or the  enforcement  thereof  shall  release  the  Bank  from  its
obligations hereunder or under any of the other Loan Documents.

         17.2.  Participation by Bank.

         The Bank  shall  have the right at any time or from  time to time,  and
without the consent of the Borrower, to sell participations to one or more banks
or other financial  institutions (a  "Participant") in all or any portion of its
rights and obligations hereunder; provided that (a) the Bank's obligations under
this Credit Agreement and the other Loan Documents shall remain  unchanged,  (b)
the Bank shall remain solely  responsible to the Borrower for the performance of
such obligations and (c) the Borrower shall continue to deal directly and solely
with the Bank in connection  with the Bank's rights and  obligations  under this
Credit  Agreement  and the other Loan  Documents.  Any  agreement or  instrument
pursuant to which the Bank sells a  participation  shall  provide  that the Bank
shall retain the sole right to enforce this Credit  Agreement and the other Loan
Documents and to approve any amendment,  modification or waiver of any provision
of this Credit Agreement, provided that such agreement or instrument may provide
that the Bank will not,  without  the consent of the  Participant,  agree to any
amendment,  modification  or waiver  which would (i) extend the term or increase
the  Commitment of the Bank, if the effect of such increase would be to increase
the  aggregate  principal  amount of  participations  which the  Participant  is
required to purchase from the Bank under such agreement or instrument evidencing
such  participations,  (ii) reduce the principal  amount of any Revolving Credit
Loan in



which the  Participant  has  purchased a  participation  or the amount which the
Borrower is required to reimburse  the Bank  hereunder in respect of any drawing
under a Letter of Credit in which the  Participant has purchased a participation
or  reduce  the  rate of  interest  thereon,  (iii)  reduce  the  amount  of any
commitment fees or Letter of Credit Fees to which the Participant is entitled or
(iv) extend any regularly scheduled payment date for principal or interest.  The
Bank may furnish any information  concerning the Borrower in its possession from
time to time to prospective  participants,  provided that the Bank shall require
any prospective  participant to agree in writing to maintain the confidentiality
of such information on the terms set forth in Section 15.

         17.3.  Assignment by Borrower.

         The  Borrower  shall  not  assign  or  transfer  any of its  rights  or
obligations under any of the Loan Documents without the prior written consent of
the Bank.

                                18. NOTICES, ETC.

         Except as otherwise  expressly  provided in this Credit Agreement,  all
notices and other  communications  made or required to be given pursuant to this
Credit  Agreement  or the  Revolving  Credit  Notes  or  any  Letter  of  Credit
Applications  shall be in  writing  and shall be  delivered  in hand,  mailed by
United States registered or certified first class mail, postage prepaid, sent by
overnight  courier,  or sent by telecopy or facsimile  and confirmed by delivery
via courier or postal service, addressed as follows:

                  (a) if to the  Borrower,  at 9  Hampshire  Street,  Mansfield,
         Massachusetts  02048,  Attention:  Michael  El-Hillow,  Chief Financial
         Officer, or at such other address for notice as the Borrower shall last
         have furnished in writing to the Person giving the notice; and

                  (b)  if  to  the  Bank,   at  100  Federal   Street,   Boston,
         Massachusetts  02110,  USA,  Attention:   Debra  E.  DelVecchio,   Vice
         President, or such other address for notice as the Bank shall last have
         furnished in writing to the Person giving the notice.

         Any such  notice or demand  shall be deemed to have been duly  given or
made and to have become effective (i) if delivered by hand, overnight courier or
facsimile to a responsible officer of the party to which it is directed,  at the
time of the receipt thereof by such officer or the sending of such facsimile and
(ii) if sent by registered or certified  first-class mail,  postage prepaid,  on
the third Business Day following the mailing thereof.

                               19. GOVERNING LAW.

         THIS CREDIT  AGREEMENT AND, EXCEPT AS OTHERWISE  SPECIFICALLY  PROVIDED
THEREIN,  EACH OF THE OTHER LOAN  DOCUMENTS ARE CONTRACTS  UNDER THE LAWS OF THE
COMMONWEALTH  OF  MASSACHUSETTS  AND  SHALL FOR ALL  PURPOSES  BE  CONSTRUED  IN
ACCORDANCE WITH AND GOVERNED BY THE LAWS OF



SAID  COMMONWEALTH OF MASSACHUSETTS  (EXCLUDING THE LAWS APPLICABLE TO CONFLICTS
OR CHOICE OF LAW). THE BORROWER AGREES THAT ANY SUIT FOR THE ENFORCEMENT OF THIS
CREDIT AGREEMENT OR ANY OF THE OTHER LOAN DOCUMENTS MAY BE BROUGHT IN THE COURTS
OF THE  COMMONWEALTH OF  MASSACHUSETTS  OR ANY FEDERAL COURT SITTING THEREIN AND
CONSENTS TO THE  NONEXCLUSIVE  JURISDICTION OF SUCH COURT AND SERVICE OF PROCESS
IN ANY SUCH SUIT BEING MADE UPON THE  BORROWER BY MAIL AT THE ADDRESS  SPECIFIED
IN SECTION  18. THE  BORROWER  HEREBY  WAIVES ANY  OBJECTION  THAT IT MAY NOW OR
HEREAFTER HAVE TO THE VENUE OF ANY SUCH SUIT OR ANY SUCH COURT OR THAT SUCH SUIT
IS BROUGHT IN AN INCONVENIENT COURT.

                                  20. HEADINGS.

         The captions in this Credit  Agreement are for convenience of reference
only and shall not define or limit the provisions hereof.

                                21. COUNTERPARTS.

         This  Credit  Agreement  and any  amendment  hereof may be  executed in
several counterparts and by each party on a separate counterpart,  each of which
when  executed and  delivered  shall be an original,  and all of which  together
shall  constitute one instrument.  In proving this Credit Agreement it shall not
be necessary to produce or account for more than one such counterpart  signed by
the party against whom enforcement is sought.

                           22. ENTIRE AGREEMENT, ETC.

         The Loan  Documents  and any other  documents  executed  in  connection
herewith or  therewith  express  the entire  understanding  of the parties  with
respect to the transactions  contemplated hereby.  Neither this Credit Agreement
nor any term hereof may be changed, waived, discharged or terminated,  except as
provided in Section 24.

                            23. WAIVER OF JURY TRIAL.

         Each of the  Borrower  and the Bank  hereby  waives its right to a jury
trial  with  respect  to any  action  or claim  arising  out of any  dispute  in
connection with this Credit Agreement,  the Revolving Credit Notes or any of the
other Loan Documents,  any rights or obligations  hereunder or thereunder or the
performance  of such rights and  obligations.  Except as  prohibited by law, the
Borrower  hereby  waives  any  right  it may have to  claim  or  recover  in any
litigation  referred  to in  the  preceding  sentence  any  special,  exemplary,
punitive or consequential  damages or any damages other than, or in addition to,
actual  damages.  The Borrower (a) certifies  that no  representative,  agent or
attorney of the Bank has  represented,  expressly  or  otherwise,  that the Bank
would not, in the event of litigation, seek to enforce the foregoing waivers and
(b)  acknowledges  that the Bank has been  induced  to enter  into  this  Credit
Agreement,  the other  Loan  Documents  to which it is a party by,  among  other
things, the waivers and certifications contained herein.



                     24. CONSENTS, AMENDMENTS, WAIVERS, ETC.

         This  Agreement  may not be  amended  or  waived  except  by a  written
instrument  signed by the  Borrower  and the Bank.  No waiver shall extend to or
affect  any  obligation  not  expressly  waived or impair  any right  consequent
thereon.  No course of dealing or delay or  omission  on the part of the Bank in
exercising  any  right  shall  operate  as a  waiver  thereof  or  otherwise  be
prejudicial  thereto. No notice to or demand upon the Borrower shall entitle the
Borrower to other or further notice or demand in similar or other circumstances.

                                   25. USURY.

         All agreements  between the Borrower and the Bank are hereby  expressly
limited  so that in no  contingency  or event  whatsoever,  whether by reason of
acceleration  of the maturity of the Revolving  Credit Note or otherwise,  shall
the amount paid or agreed to be paid to the Bank for the use or the  forbearance
of the Indebtedness  represented by the Revolving Credit Note exceed the maximum
permissible under applicable law. In this regard, it is expressly agreed that it
is the intent of the  Borrower  and the Bank,  in the  execution,  delivery  and
acceptance of the Revolving  Credit Note, to contract in strict  compliance with
the laws of the  Commonwealth  of  Massachusetts.  If,  under any  circumstances
whatsoever,  performance or fulfillment of any provision of the Revolving Credit
Note or any of the other  Loan  Documents  at the time such  provision  is to be
performed or fulfilled shall involve exceeding the limit of validity  prescribed
by applicable  law, then the obligation so to be performed or fulfilled shall be
reduced  automatically  to  the  limits  of  such  validity,  and if  under  any
circumstances  whatsoever  the Bank  should  ever  receive as interest an amount
which would exceed the highest lawful rate, such amount which would be excessive
interest shall be applied to the reduction of the principal balance evidenced by
the Revolving Credit Note and not to the payment of interest.  The provisions of
this Section 25 shall control every other provision of this Credit Agreement and
the Revolving Credit Note.

                                26. SEVERABILITY.

         The  provisions  of this Credit  Agreement are severable and if any one
clause or provision hereof shall be held invalid or unenforceable in whole or in
part in any jurisdiction,  then such invalidity or unenforceability shall affect
only such clause or provision, or part thereof, in such jurisdiction,  and shall
not in any manner affect such clause or provision in any other jurisdiction,  or
any other clause or provision of this Credit Agreement in any jurisdiction.






         IN WITNESS  WHEREOF,  the  undersigned  have duly  executed this Credit
Agreement as a sealed instrument as of the date first set forth above.

                          HELIX TECHNOLOGY CORPORATION

                          By: /s/Michael El-Hillow
                              -------------------------------------------------
                              Name:  Michael  El-Hillow
                              Title: Vice President and Chief Financial Officer

                          FLEET NATIONAL BANK



                          By: /s/Debra L. DelVecchio
                              -------------------------------------------------
                              Name:  Debra L. DelVecchio
                              Title: Vice President