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                                CREDIT AGREEMENT



                           Dated as of August 25, 1998

                                 by and between


                        APPLIED CELLULAR TECHNOLOGY, INC.

                                       and

                       STATE STREET BANK AND TRUST COMPANY





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                                TABLE OF CONTENTS


ARTICLE I.  DEFINITIONS.......................................................1
         Section 1.01.     Definitions........................................1
         Section 1.02.     Accounting Terms...................................8

ARTICLE II.  AMOUNT AND TERMS OF THE CREDIT...................................8
         Section 2.01.     The Revolving Credit...............................8
         Section 2.02.     The Credit.........................................8
                  (a)      General Terms......................................8
                  (b)      The Credit Note....................................9
                  (c)      Interest...........................................9
                  (d)      Requests for Advances..............................9
                  (e)      Payment Upon Maturity Date.........................9
                  (f)      Credit Advances...................................10
         Section 2.03.     Interest on the Credit............................10
         Section 2.04.     Special Provisions Governing LIBOR Rate Loans.....10
                  (a)      LIBOR Rate Loan Interest Periods..................10
                  (b)      LIBOR Conversion..................................11
                  (c)      Determination of Interest Rate....................12
                  (d)      Substituted Rate of Borrowing.....................12
                  (e)      Required Termination and Prepayment...............13
                  (f)      Compensation......................................13
                  (g)      Quotation of LIBOR Rate...........................13
                  (h)      LIBOR Rate Taxes..................................14
                  (i)      Booking of LIBOR Rate Loans.......................14
                  (j)      Increased Costs...................................14
                  (k)      Assumptions Concerning Funding of LIBOR 
                           Rate Loans........................................15
                  (l)      LIBOR Rate Loans After Default....................15
         Section 2.05.     Special Provisions Governing Alternative 
                           Currencies........................................15
                  (a)      General...........................................15
                  (b)      Availability......................................16
                  (c)      Judgment Currency.................................16
         Section 2.06.     Method of Payment.................................16
         Section 2.07.     Voluntary Prepayments on the Credit...............17
         Section 2.08.     Payment and Interest Cutoff.......................17
         Section 2.09.     Prepayment of Credit..............................17
         Section 2.10.     Expenses..........................................18
         Section 2.11.     [Intentionally Omitted]...........................18
         Section 2.12.     Commitment Fee....................................18
         Section 2.13.     Use of Credit Proceeds............................18
         Section 2.14.     Letters of Credit.................................18
                  (a)      Issuance Procedures...............................18
                  (b)      L/Cs - Foreign Subsidiaries.......................19
                  (c)      Reimbursement.....................................19
                  (d)      Commission........................................19
                  (e)      Method of Payment.................................19
                  (f)      Amount............................................19

ARTICLE III.  REPRESENTATIONS AND WARRANTIES.................................20
         Section 3.01.     Corporate Existence and Power; 
                           Organizational Structure..........................20



         Section 3.02.     Subsidiaries......................................20
         Section 3.03.     Power and Authority Relative to Borrowing; 
                           Legal and Binding Nature, Compliance 
                           with Other Instruments............................20
         Section 3.04.     Financial Condition...............................21
         Section 3.05      No Material Adverse Change........................21
         Section 3.06.     Litigation; Employment and Labor..................21
         Section 3.07.     Title.............................................22
         Section 3.08.     Tax Returns and Payments..........................22
         Section 3.09.     Compliance with Law...............................22
         Section 3.10.     Pension Matters...................................22
         Section 3.11.     Compliance with Regulation U......................23
         Section 3.12.     Credit Agreements.................................23
         Section 3.13.     Leases and Options to Purchase....................23
         Section 3.14.     Insolvency........................................23
         Section 3.15.     Real Estate Owned.................................23
         Section 3.16.     Hazardous Waste...................................23
         Section 3.17.     Permits...........................................23
         Section 3.18.     SEC Filings; No Omissions.........................24
         Section 3.19      Intellectual Property.............................24
         Section 3.20.     Operation of Business on Consolidated Basis.......24

ARTICLE IV.  CONDITIONS......................................................24
         Section 4.01.     Conditions to the Credit and the First 
                           Advance...........................................24
                  (a)      Credit Documents..................................25
                  (b)      Actions to Perfect Liens..........................25
                  (c)      Lien Searches.....................................25
                  (d)      Pledged Stock; Stock Powers.......................25
                  (e)      UCC-3 Termination Statements......................25
                  (f)      Secretary's Certificate...........................25
                  (g)      Officer's Certificate.............................26
                  (h)      Legal Existence, Good Standing, Tax Good 
                           Standing and Foreign Qualification Certificates...26
                  (i)      Certificates of Insurance.........................26
                  (j)      Legal Opinions from Counsel for the Borrower 
                           and Guarantors....................................26
                  (k)      No Default........................................26
                  (l)      Material Adverse Change...........................26
                  (m)      Miscellaneous Requirements........................26
         Section 4.02.     Conditions to Subsequent Advances.................27

ARTICLE V.  COVENANTS OF THE BORROWER........................................27
         Section 5.01.     Payment of Amounts Due, Etc.......................27
         Section 5.02.     Corporate Existence...............................27
         Section 5.03.     Maintenance of Properties.........................27
         Section 5.04.     Payment of Taxes, Compliance with Laws............27
         Section 5.05.     Insurance.........................................27
         Section 5.06.     Accounts and Reports..............................28
                  (a)      Annual Reports....................................28
                  (b)      Quarterly Reports.................................28


                                       ii



                  (c)      Compliance Certificates...........................29
                  (d)      Projections.......................................29
                  (e)      Auditor's Management Letter.......................29
                  (f)      Public Information................................29
                  (g)      Accounting Principles.............................30
         Section 5.07.     Information and Inspection........................30
         Section 5.08.     Additional Advice.................................30
         Section 5.09.     Payment of Expenses...............................30
         Section 5.10.     Limitation on Indebtedness........................31
         Section 5.11.     Limitation on Liability for Obligations of 
                           Others............................................32
         Section 5.12.     Limitation on Liens...............................32
         Section 5.13.     Sale of Assets....................................33
         Section 5.14.     Loans and Investments in Securities...............33
         Section 5.15.     Transactions With Affiliated Persons..............34
         Section 5.16.     Consolidation, Merger or Disposition/Acquisition 
                           of Assets.........................................34
         Section 5.17.     Changes in Corporate Business.....................35
         Section 5.18.     New Subsidiaries..................................35
         Section 5.19.     Minority Stockholders.............................36
         Section 5.20.     Restricted Payments...............................36
         Section 5.21.     Restriction on Use of Proceeds....................36
         Section 5.22.     Bank Accounts.....................................37
         Section 5.23.     Continued Management and Ownership of Borrower
                           and Each Subsidiary...............................37
         Section 5.24.     Material Agreements...............................37
         Section 5.25.     Maximum Capital Expenditures......................37
         Section 5.26.     Ratio of Total Liabilities to Tangible 
                           Net Worth.........................................37
         Section 5.27.     Ratio of Current Assets to Current Liabilities....38
         Section 5.28.     Ratio of Cash Flow to Debt Service ...............38
         Section 5.29.     Ratio of Net Profit Before Taxes to Revenue.......38
         Section 5.30.     Year 2000.........................................39

ARTICLE VI.  EVENTS OF DEFAULT...............................................39


ARTICLE VII.  MISCELLANEOUS..................................................41
         Section 7.01.     Term of Agreement.................................41
         Section 7.02.     Notices...........................................41
         Section 7.03.     No Waiver.........................................42
         Section 7.04.     Construction......................................42
         Section 7.05.     Amendments, Waivers and Consents; No Assignment...42
         Section 7.06.     Closing...........................................43
         Section 7.07.     Consent to Jurisdiction...........................43
         Section 7.08.     Waiver of Jury Trial..............................43
         Section 7.09.     Indemnity.........................................43
         Section 7.10.     Setoff............................................43
         Section 7.11.     Reliance on Representations and Actions 
                           of the Borrower...................................44
         Section 7.12.     Participation.....................................44

                                       iii


LIST OF EXHIBITS AND SCHEDULES

Exhibit A                  Form of Credit Note
Exhibit B                  Form of Borrower Security Agreement.
Exhibit C                  Form of Borrower Stock Pledge Agreement.
Exhibit D                  Form of Guaranty Agreement.
Exhibit E                  Form of Subsidiary Security Agreement.
Exhibit F                  Form of Subsidiary Stock Pledge Agreement.
Exhibit G                  Form of Notice of Conversion/Continuation
Exhibit H                  Form of Secretary's Certificate
Exhibit I                  Form of Officer's Certificate
Exhibit J                  Form of Compliance Certificate

Schedule 3.02     Schedule of Subsidiaries and Ownership Structure
Schedule 3.04     Schedule of Financial Condition
Schedule 3.05     Schedule of Material Adverse Changes
Schedule 3.06     Schedule of Litigation; Employment and Labor
Schedule 3.07     Schedule of Properties and Assets
Schedule 3.08     Schedule of Payment of Taxes
Schedule 3.09     Schedule of Compliance with Law, etc.
Schedule 3.10     Schedule of Pension Matters
Schedule 3.12     Schedule of Existing Loan Agreements
Schedule 3.13     Schedule of Leases
Schedule 3.15     Schedule of Real Estate
Schedule 3.16     Schedule of Hazardous Waste
Schedule 3.17     Schedule of Licenses and Permits
Schedule 4.01(c)  Schedule of Lien Search Results
Schedule 5.06     Form of Consolidating and Comparative
                  Balance Sheet and Income Statement

Schedule 5.10(d)  Schedule of Existing
                  Purchase Money Indebtedness and Capitalized Lease Obligations
Schedule 5.10(e)  Schedule of Other Existing Indebtedness
Schedule 5.11     Schedule of Existing Guaranties
Schedule 5.15     Schedule of Warrants and Options
Schedule 5.20     Schedule of Permitted Payments




                                       iv

                                                     

                                CREDIT AGREEMENT

     This CREDIT  AGREEMENT (the  "Agreement") is made as of August 25, 1998, by
and (a) between APPLIED CELLULAR  TECHNOLOGY,  INC., a Missouri corporation (the
"Borrower") and (b) STATE STREET BANK AND TRUST COMPANY,  a Massachusetts  trust
company (the "Bank").

                             Preliminary Statements:

     WHEREAS,  the Borrower  wishes to establish a credit facility with the Bank
under which the Borrower  may borrow  funds from the Bank to refinance  existing
indebtedness and for general working capital purposes; and

     WHEREAS,  the Bank has  agreed  to  establish  a  credit  facility  for the
Borrower under the terms and conditions hereinafter set forth;

     NOW,  THEREFORE,  in  consideration  of the premises and for other good and
valuable  consideration,  the  receipt  and  sufficiency  of  which  are  hereby
acknowledged, the parties hereto agree as follows:

ARTICLE I. DEFINITIONS

     Section  1.01.  Definitions.  As  used  herein  and  in  the  other  Credit
Documents, the following terms shall have the following meanings:

          "Adjustment  Date" means the first  Business Day following  receipt by
     the Bank of both (i) the  financial  statements  required  to be  delivered
     pursuant  to  Section  5.06(a)  or (b),  as the case  may be,  for the most
     recently completed fiscal period specified therein and (ii) the certificate
     required to be  delivered  pursuant to  subsection  5.06(c) with respect to
     such fiscal period.

          "Alternative Currency" shall mean, subject to the provisions set forth
     in Section 2.05 below,  any currency (a) which is freely  transferable  and
     convertible into Dollars,  (b) in which deposits are customarily offered to
     banks in the London interbank  market,  (c) which the Borrower requests the
     Bank to  include as an  alternative  currency  hereunder,  and (d) which is
     acceptable to the Bank.

          "Applicable  LIBOR Rate" shall mean an annual rate of interest  for an
     Interest  Period equal to the LIBOR Rate in effect on the first day of such
     Interest Period plus the Applicable Margin.

          "Applicable  Margin" means,  for each LIBOR Rate Loan, 2.00% provided,
     however,  that after the date hereof,  the Applicable  Margin for all LIBOR
     Rate Loans will be adjusted on each  Adjustment  Date (based upon the ratio
     of Total Liabilities to Tangible Net Worth as of the last day of the fiscal
     quarter  ended on the date of the  financial  statements  relating  to such
     Adjustment Date) to the Applicable  Margin set below opposite the level for
     which the ratio of Total Liabilities to Tangible Net Worth as so determined
     satisfies the corresponding  criteria set forth under the heading "Ratio of
     Total Liabilities to Tangible Net Worth:"

                                       



     ===========================================================================
                                    Ratio of                          Applicable
           Level                Total Liabilities                       Margin
                                       to
                               Tangible Net Worth
          -------        -------------------------------------        ----------
            I            Greater than or equal to 1.75 to 1.00           2.25%
             
            II           Less than 1.75 to 1.00                          2.00%
         
      ==========================================================================
        
          Notwithstanding  the  foregoing,  in  the  event  that  the  financial
          statements  required to be  delivered  pursuant to Section  5.06(a) or
          (b), as applicable,  and the related certificate  required pursuant to
          Section  5.06(c),  are not  delivered  when due,  then for the  period
          commencing  on the next  Adjustment  Date to occur  subsequent to such
          failure  through the date  immediately  following on the date on which
          such financial  statements and such related  certificate is delivered,
          the Applicable Margin shall be 2.25%.

               "Borrower   Security   Agreement"  means  the  Borrower  Security
          Agreement - All Assets to be executed and delivered by the Borrower in
          favor of the  Bank,  substantially  in the  form  attached  hereto  as
          Exhibit B, as the same may be amended, modified, substituted, extended
          or restated, from time to time.

               "Borrower Stock Pledge Agreement" means the Borrower Stock Pledge
          Agreement to be executed and delivered by the Borrower in favor of the
          Bank,  substantially  in the form attached hereto as Exhibit C, as the
          same may be amended, modified, substituted, extended or restated, from
          time to time.

               "Business Day" means (i) with respect to any  borrowing,  payment
          or rate  selection of LIBOR Rate Loans and any  conversion  of another
          Type of Credit  Advance  into a LIBOR Rate  Loans,  any day other than
          Saturday or Sunday on which  commercial banks are open for business in
          Boston, Massachusetts,  on which dealings in Dollars are carried on in
          the London  interbank  market and,  where funds are to be paid or made
          available in a currency other than Dollars,  on which commercial banks
          are open for domestic and international  business  (including dealings
          in deposits in such  currency) in both London and the place where such
          funds  are to be  paid or  made  available,  and  (ii)  for all  other
          purposes,  a day other than Saturday or Sunday on which banks are open
          for business in Boston, Massachusetts.

               "Canadian  Debt"  shall  mean all  Indebtedness  of the  Canadian
          Subsidiaries  to  (a)  First  Chicago  NBD  Bank,   Canada,   (b)  The
          Toronto-Dominion  Bank  or (c) any  substitute  or  replacement  banks
          thereof; provided, however, that the aggregate principal amount of all
          such Indebtedness shall not, at any time, exceed $9,000,000.

               "Canadian  Subsidiary" shall mean any Subsidiary  organized under
          the laws of Canada.


                                       2


               "Capital  Stock"  means,  with  respect to the  Borrower  and any
          Subsidiary,  any and all shares,  interests,  participations  or other
          equity equivalents (however designated,  whether voting or non-voting)
          of  capital  of  the  Borrower  or  such   Subsidiary,   whichever  is
          applicable, whether now or hereafter outstanding or issued.

               "Capitalized  Lease  Obligations"  means,  for  any  period,  all
          obligations  of the Borrower and its  Subsidiaries  under any lease of
          property  (real,   personal  or  mixed)  or  other  periodic   payment
          arrangement   which  have  been  or  should  be   capitalized  on  the
          consolidated  balance sheet of the Borrower and its  Subsidiaries,  in
          accordance  with  GAAP,  in each  case  taken  at the  amount  thereof
          accounted  for  as  Indebtedness,  net  of  interest  expense  related
          thereto,  determined in accordance  with GAAP, the stated  maturity of
          which shall be the date of the last  payment of any amount  thereunder
          prior to the first date upon which such  arrangement may be terminated
          by the Borrower or its  Subsidiary,  whichever is applicable,  without
          payment of any penalty.

               "Credit  Documents"  shall  mean this  Agreement,  the Note,  the
          Guaranty  Agreement,  the Security  Documents and all other documents,
          instruments,  certificates and agreements now or hereafter executed in
          connection with any of them.

               "Dollar  Amount" of any  currency  at any date shall mean (i) the
          amount of such  currency  if such  currency  is  Dollars,  or (ii) the
          equivalent  amount of Dollars if such  currency is any currency  other
          than Dollars,  calculated on the basis of arithmetical mean of the buy
          and sell spot rates of exchange  of the Bank for such  currency on the
          London market at 11:00 a.m.,  London time,  two Business Days prior to
          the date on which such amount is to be determined.

               "Dollars"  and "$" shall  mean in lawful  currency  of the United
          States of America.

               "Foreign  Subsidiary"  shall mean any Subsidiary  organized under
          the laws of any jurisdiction outside of the United States of America.

               "GAAP" means  generally  accepted  accounting  principles  in the
          United States of America as in effect from time to time.

               "Guarantor"  shall mean any  Subsidiary  (other  than any Foreign
          Subsidiary)  which is, or is  required to become,  a guarantor  of the
          Obligations, as provided in Section 5.18 of this Agreement.

               "Guaranty  Agreement" means the Guaranty Agreement to be executed
          and  delivered  by each of the  Subsidiaries  (other  than the Foreign
          Subsidiaries) in favor of the Bank, substantially in the form attached
          hereto  as  Exhibit  D,  as  the  same  may  be   amended,   modified,
          substituted, extended, restated, supplemented or reaffirmed, from time
          to time.

               "Interest  Rate  Determination  Date"  shall  mean  each date for
          calculating  the LIBOR Rate for purposes of  determining  the interest


                                       3


          rate in respect of an Interest Period. The Interest Rate Determination
          Date  shall be the second  Business  Day prior to the first day of the
          related Interest Period for a LIBOR Rate Loan.

               "LIBOR Rate" shall mean, for any given date, the London Interbank
          Offered  Rate  for the  applicable  Interest  Period  selected  by the
          Borrower  in  accordance  with  Section  2.05(a)  hereof  as quoted by
          Barclays Bank PLC, London,  England or by Lloyds Bank, London, England
          (and if such rate  shall  differ,  the Bank  shall  have the option of
          which rate  applies  for  purposes of this  Agreement)  at 11:00 a.m.,
          London  time as  adjusted  by  dividing  (i) the  LIBOR  Rate for that
          Interest  Period by (ii) a  percentage  equal to 100% minus the stated
          maximum   percentage   rate  of  all  reserves   (including,   without
          limitation,  any basic,  supplemental,  emergency or marginal  reserve
          requirement)   required  to  be   maintained   against   "Eurocurrency
          liabilities"  as  specified  in  Regulation  D (or  against  any other
          category of liabilities  that includes  deposits by reference to which
          the interest rate on LIBOR Rate Loans is determined or any category of
          extensions of credit or other assets that includes loans by a non-U.S.
          office of the Bank to U.S. residents).

               "LIBOR Rate Loans" shall mean all or a portion of the outstanding
          Credit  Advances  which  accrue  and bear  daily  interest  during the
          Interest  Period  so  selected  at a  per  annum  rate  equal  to  the
          Applicable  LIBOR Rate for such  Interest  Period  pursuant to Section
          2.05 hereof.

               "Liens"  means  any  and  all:   mortgages,   pledges,   security
          interests,  encumbrances,  liens,  or charges  of any kind,  including
          agreements to give any of the  foregoing;  conditional  sales or other
          title  retention  agreements  or devices,  or any leases in the nature
          thereof;  and filing of,  giving or agreement to give,  any  financing
          statement under the Uniform Commercial Code of any jurisdiction.

               "Loans" means,  collectively,  the LIBOR Rate Loans and the Prime
          Rate Loans.

               "Note"  shall  mean  the  Credit  Note,  all   substitutions  and
          replacements  thereof, and any other note(s) issued by the Borrower to
          the Bank pursuant to this Agreement.

               "Obligations"  shall mean any and all Indebtedness,  liabilities,
          duties, warranties, covenants and agreements of the Borrower or any of
          its  Subsidiaries  (other than the Foreign  Subsidiaries) to the Bank,
          whether  of payment  or of  performance;  now  existing  or  hereafter
          arising;  due  or not  due,  absolute  or  contingent,  liquidated  or
          unliquidated,  and  arising  pursuant  to or in  connection  with this
          Agreement   and  the  other  Credit   Documents   (including   without
          limitation, the Guaranty Agreement).

               "Permitted Acquisition" shall mean an acquisition by the Borrower
          or a Subsidiary which meets all of the following  criteria:  (i) is an
          acquisition of not less than eighty percent (80%) of the capital stock
          or  assets  of  an  entity  engaged  in  a  substantially  similar  or
          complementary   business  as  that  in  which  the  Borrower  or  such
          Subsidiary is engaged as of the date hereof;  (ii) the  properties and
          assets  acquired by the Borrower or such Subsidiary in connection with
          such  acquisition  are free from all Liens  whatsoever,  except  Liens
          permitted under Section 5.12;  (iii) no Indebtedness is assumed by the


                                       4


          Borrower in  connection  with such  acquisition,  except  Indebtedness
          permitted  under Section 5.10;  (iv)  immediately  prior to, and after
          giving  effect to such  acquisition,  no Event of Default shall exist;
          and (v) not less than two (2) Business Days prior to such acquisition,
          the Bank shall have  received  computations  from the Borrower  (based
          upon a compliance certificate in the form of Exhibit J hereto) showing
          pro  forma  compliance  with  the  financial  covenants  set  forth in
          Sections 5.25 through 5.29,  inclusive,  of this Agreement,  as of the
          date of, and after giving effect to, such acquisition.

               "Person" or "person" means any individual,  corporation,  limited
          liability company, partnership,  limited liability partnership, trust,
          trade, business and governmental agency and instrumentality.

               "Prime Rate" shall mean the annual rate of interest  announced by
          the Bank from time to time, at the principal  office of the Bank,  225
          Franklin Street, Boston, Massachusetts 02110, as its prime rate.

               "Purchase Money Indebtedness" means any Indebtedness  incurred by
          the Borrower or any of its Subsidiaries,  whichever is applicable,  in
          connection  with  financing  the  purchase  by the  Borrower  or  such
          Subsidiary,  whichever is  applicable,  of property or assets from any
          other Person.

               "Regulation D" shall mean  Regulation D of the Board of Governors
          of the Federal  Reserve System from time to time in effect,  and shall
          include any successor or other  regulation or official  interpretation
          of said Board of Governors relating to reserve requirements applicable
          to member banks of the Federal Reserve System.

               "Restricted  Payments"  means (i) any cash or property  dividend,
          distribution,  or other payment, direct or indirect, to any Person who
          now or in the future may hold an equity  interest  in a Borrower  or a
          Subsidiary made with respect to or on account of such equity interest,
          other than those from a Subsidiary to the Borrower,  whether evidenced
          by a security or not; and (ii) any payment on account of the purchase,
          redemption,  retirement or other acquisition of any capital stock of a
          Borrower or a Subsidiary, or any other payment or distribution made in
          respect  thereof,   either  directly  or  indirectly   (excluding  any
          Permitted  Payments  and,  for  purposes of both clauses (i) and (ii),
          stock options and warrants granted to officers, employees or directors
          in the ordinary course).

               "Security  Documents" shall mean the Borrower Security Agreement,
          the  Borrower  Stock  Pledge   Agreement,   the  Subsidiary   Security
          Agreements,  the  Subsidiary  Stock  Pledge  Agreements  and any other
          security  documents,  financing  statements and instruments  hereafter
          delivered  to the Bank  granting  a Lien on any asset or assets of any
          Person to secure the  Obligations  or to secure any  guarantee  of any
          such Obligations.

               "Subsidiary"   shall  mean,  with  respect  to  any  Person,  any
          corporation, limited liability company, partnership or other entity of
          which more than 50% of the outstanding  securities (or other ownership
          interest)   having  ordinary  voting  power  to  elect  the  board  of


                                       5


          directors,  managers or other voting  members of the governing body of
          such  corporation,  limited  liability  company,  partnership or other
          entity  (irrespective  of  whether  at the time  securities  (or other
          ownership interest) of any other class or classes of such corporation,
          limited liability company,  partnership or other entity shall or might
          have voting power upon the  occurrence of any  contingency)  is at the
          time  directly or indirectly  owned or  controlled by such Person,  by
          such Person and one or more other  Subsidiaries of such Person,  or by
          one or more other  Subsidiaries  of such  Person.  Unless the  context
          otherwise  specifically  requires,  the term  "Subsidiary"  shall be a
          reference to a Subsidiary of the Borrower.

               "Subsidiary  Security  Agreement"  means the Subsidiary  Security
          Agreement - All Assets to be  executed  and  delivered  by each of the
          Subsidiaries  (other  than the Foreign  Subsidiaries)  in favor of the
          Bank,  substantially  in the form attached hereto as Exhibit E, as the
          same may be amended, modified, substituted, extended or restated, from
          time to time.

               "Subsidiary  Stock Pledge  Agreement"  means the Subsidiary Stock
          Pledge  Agreement  to  be  executed  and  delivered  by  each  of  the
          Subsidiaries  (including  any  Foreign  Subsidiaries)  in favor of the
          Bank,  substantially  in the form attached hereto as Exhibit F, as the
          same may be amended, modified, substituted, extended or restated, from
          time to time.

               "Type" means as to any Loan, its nature as a Prime Rate Loan or a
          LIBOR Rate Loan.

               "UK Debt" shall mean all  Indebtedness  of the UK Subsidiaries to
          National  Westminster  Bank PLC or any substitute or replacement  bank
          thereof; provided, however, that the aggregate principal amount of all
          such Indebtedness shall not, at any time, exceed $2,500,000.

               "UK  Subsidiary"  shall mean any Subsidiary  organized  under the
          laws of the United Kingdom.

The following terms are defined in the following sections:

         Affected Interest Period                         Section 2.04(d)
         Affiliate                                        Section 5.15
         Bank                                             Preamble
         Base Financial Statements                        Section 3.04
         Borrower                                         Preamble
         Capital Expenditures                             Section 5.25
         Cashflow                                         Section 5.28
         Closing Date                                     Section 7.06
         Code                                             Section 3.10
         Commitment Fee                                   Section 2.12
         Compliance Certificate                           Section 5.06(c)
         Corporate Parent                                 Section 5.18
         CPA                                              Section 5.06(a)


                                       6


         Credit                                           Sections 2.01 and 2.02
         Credit Advance(s)                                Section 2.02(a)
         Credit Note                                      Section 2.02(b)
         Cumulative Amount                                Section 5.28
         Current Assets                                   Section 5.27
         Current Liabilities                              Section 5.27
         Debt Service                                     Section 5.28
         Default Rate of Interest                         Section 2.03
         ERISA                                            Section 3.10
         Event(s) of Default                              Article VI
         Exchange Act                                     Section 5.23
         First Chicago NBD Guaranty                       Section 5.11(c)
         Indebtedness                                     Section 5.10
         Interest Period                                  Section 2.03
         L/C                                              Sections 2.14(a) - (e)
         LIBOR Rate Taxes                                 Sections 2.04(h) - (i)
         Maximum Credit                                   Section 2.02(b)
         Maturity Date                                    Section 2.02(a)
         National Westminster Bank Guaranty               Section 5.11(d).
         Net Profit Before Taxes                          Section 5.29
         Notice of Conversion/Continuation                Section 2.04(b)
         Participant                                      Section 7.12
         Permitted Payments                               Section 5.20
         Prime Rate Loan(s)                               Section 2.03
         Revenue                                          Section 5.29
         Special Counsel                                  Section 4.01(j)
         specified currency                               Section 2.05(b)
         Securities Law                                   Section 3.19
         Tangible Net Worth                               Section 5.26
         Total Liabilities                                Section 5.26

     Section 1.02.  Accounting Terms.  Unless otherwise  specified  herein,  all
accounting  terms  used  herein  shall be  construed  in  accordance  with  GAAP
consistently applied.

ARTICLE II. AMOUNT AND TERMS OF THE CREDIT

     Section 2.01.  The Revolving  Credit.  Subject to the terms and  conditions
hereof, and in reliance on the representations and warranties  contained herein,
the Bank hereby establishes a revolving credit facility in favor of the Borrower
in the maximum aggregate principal amount of $20,000,000 as set forth below (the
"Credit").

     Section 2.02. The Credit.

          (a)  General  Terms.  Subject to the terms and  conditions  hereof and
     provided that no Event of Default, or event which with the passage of time,
     the giving of notice,  or both, would  constitute an Event of Default,  has
     occurred or is  continuing,  the Borrower  may,  from time to time from the


                                       7


     date hereof up to July 31, 1999 (the  "Maturity  Date") borrow and reborrow
     from the  Bank,  and the  Bank  shall  advance  funds  to the  Borrower  as
     requested  pursuant  to  Section  2.02(d)  (each  a  "Credit  Advance"  and
     collectively, the "Credit Advances"); provided, however, that the aggregate
     of all Credit Advances outstanding at any time shall not exceed $20,000,000
     less the maximum aggregate  liability of the Borrower under any outstanding
     letters  of  credit  issued  pursuant  to  Section  2.14 of this  Agreement
     (the"Maximum Credit"). To the extent any Credit Advance exceeds the Maximum
     Credit,  the Borrower shall  immediately,  without notice or demand,  repay
     such overadvance to the Bank.

          Each  Credit  Advance  shall  be made  in  either  Dollars  or in such
     Alternative Currency as shall be designated by the Borrower in writing with
     respect to such Credit Advance;  provided that (a) the Dollar Amount of all
     Credit  Advances  outstanding in Alternative  Currencies  shall not, at any
     time, exceed the aggregate sum of $4,000,000; (b) each Credit Advance to be
     made in an  Alternative  Currency shall be in the minimum amount of 100,000
     units of such  Alternative  Currency and increments of 50,000 units of such
     Alternative Currency thereafter;  and (c) each Credit Advance to be made in
     Dollars  shall be in the  minimum  amount of  $100,000  and  increments  of
     $50,000  thereafter.  If, with respect to any Credit Advance,  the Borrower
     does not so designate  the  currency in which such Credit  Advance is to be
     made, such Credit Advance shall be made in Dollars.

          (b) The Credit Note.  All amounts owed by the Borrower with respect to
     Credit  Advances  shall be  evidenced  by a  revolving  credit  note in the
     principal  amount of the Maximum Credit,  dated the date hereof in the form
     attached hereto as Exhibit A (the "Credit Note").

          (c)  Interest.  The Credit  Note shall bear  interest  as  provided in
     Section 2.03.

          (d) Requests for  Advances.  Each Credit  Advance shall be made on the
     day on which the Bank receives  notice from the Borrower or, if such day is
     not a Business Day, on the next succeeding  Business Day, provided the Bank
     receives  notice from the Borrower  prior to 1:00 p.m.  Boston time on such
     Business Day.  Each request for a Credit  Advance shall be made to the Bank
     in writing  (including  by telecopy)  or by telephone by a duly  authorized
     representative  of the  Borrower,  and the Bank may rely upon any telephone
     request which it reasonably believes is made by such a representative.  The
     Borrower  agrees to  indemnify  and hold the Bank  harmless for any action,
     including  the making of Credit  Advances  hereunder,  or loss or  expense,
     taken or incurred by the Bank in good faith  reliance  upon such  telephone
     request. At the time of the initial request for a Credit Advance made under
     this  Section  2.02(d),  the Borrower  shall have  provided the Bank with a
     Compliance  Certificate in the form required by Section 5.06(c) hereof. The
     Borrower hereby agrees (i) that the Bank shall be entitled to rely upon the
     most recent Compliance Certificate in its possession until it is superseded
     by another Compliance Certificate,  and (ii) that each request for a Credit
     Advance, whether by telephone or in writing or otherwise,  shall constitute
     a confirmation of the representations and warranties  contained in the most
     recent Compliance Certificate then in the Bank's possession.



                                       8


          (e)  Payment  Upon  Maturity  Date.  The  Credit  shall  expire on the
     Maturity  Date and all Credit  Advances then  outstanding  shall be due and
     payable  without  notice on such date  together with all accrued and unpaid
     interest  thereon  and any other  amounts  then due.  In the event the Bank
     continues  Credit  Advances  after  the  Maturity  Date  without  a written
     extension of the Maturity Date, (i) all such Credit  Advances shall be made
     within the sole discretion of the Bank; (ii) the entire Credit shall be due
     on  demand;  and (iii) the entire  Credit  will earn  interest  at the rate
     specified to be earned after the Maturity Date in Section 2.03.

          (f)  Credit  Advances.  The  Bank  may  from  time to time in its sole
     discretion  permit Credit  Advances to exceed the  limitations set forth in
     this  Agreement,  including,  without  limitation,  (i) Credit  Advances in
     excess of the Maximum Credit,  and (ii) advances after the Maturity Date or
     the  occurrence  of an Event of Default.  All such Credit  Advances will be
     deemed  part of the  Credit  advanced  hereby.  The  making of such  Credit
     Advance  on one or more  occasions  will not  operate  to  limit,  waive or
     otherwise  modify any rights of the Bank  hereunder on any future  occasion
     unless otherwise agreed in writing.

     Section  2.03.  Interest on the  Credit.  Unless  otherwise  elected by the
Borrower in its sole  discretion  pursuant to the terms of Section 2.04 relating
to LIBOR pricing  options,  all Credit Advances shall bear interest prior to the
occurrence of an Event of Default or the Maturity Date (computed on the basis of
the actual days elapsed  over a 360-day  year) at a  fluctuating  rate per annum
equal to the Prime Rate (the  "Prime  Rate  Loans") in effect from time to time,
with interest  thereon being payable monthly in arrears on the last Business Day
of each month. Any change in the Prime Rate shall result in a change on the same
day in the rate of  interest  to accrue  from and after  such day on the  unpaid
balance of principal of the Prime Rate Loans bearing  interest with reference to
the Prime Rate. In the manner and subject to the provisions set forth in Section
2.04,  so long as no Event of Default,  and no event  which,  with the giving of
notice or the passage of time, or both, would constitute an Event of Default has
occurred and is then continuing,  the Borrower may elect from time to time prior
to the Maturity Date to have all or a portion of the unpaid  principal amount of
any  Credit  Advance  bear  interest  during  any  particular   Interest  Period
applicable  to LIBOR Rate Loans at the LIBOR Rate and be treated as a LIBOR Rate
Loan, with interest,  in all cases, being due and payable on the last day of the
applicable Interest Period relating to such LIBOR Rate Loan, provided,  that any
such  portion of such loan,  shall be in an amount not less than  $1,000,000  or
increments  of $500,000  thereof.  From and after the  occurrence of an Event of
Default or upon maturity (whether by demand, acceleration,  at the Maturity Date
or otherwise)  the unpaid  principal  balance of the Credit  Advances shall bear
interest at a  fluctuating  rate per annum  equal to two percent  (2%) above the
rate of interest  then  payable  with  respect  thereto  (the  "Default  Rate of
Interest").

     Section 2.04 Special Provisions Governing LIBOR Rate Loans. Notwithstanding
any other provisions of this Agreement to the contrary, the following provisions
shall govern with respect to LIBOR Rate Loans as to the matters covered:

          (a) LIBOR Rate Loan Interest  Periods.  In connection  with each LIBOR
     Rate Loan,  the  Borrower  shall  elect an interest  period (the  "Interest


                                       9


     Period") to be applicable to such LIBOR Rate Loan,  which  Interest  Period
     shall be, at the option of the  Borrower,  a one,  two,  three or six month
     period; provided that:

               (i) the Interest Period for any LIBOR Rate Loan shall commence on
          the date of such LIBOR Rate Loan;

               (ii) if an Interest Period would  otherwise  expire on a day that
          is not a Business Day,  such Interest  Period shall expire on the next
          succeeding Business Day; provided, further that if any Interest Period
          in respect to a LIBOR Rate Loan would  otherwise  expire on a day that
          is not a Business Day but is a day of the month after which no further
          Business Day occurs in such month,  such Interest  Period shall expire
          on the next preceding Business Day;

               (iii) any  Interest  Period in  respect of a LIBOR Rate Loan that
          begins on the last  Business Day of a calendar  month (or on a day for
          which there is not numerically corresponding day in the calendar month
          at the end of such  Interest  Period)  shall,  subject to clause  (iv)
          below, end on the last Business Day of a calendar month;

               (iv) no Interest Period with respect to any LIBOR Rate Loan shall
          extend beyond the Maturity Date; and

               (v) no Interest  Period  shall be selected if at the time thereof
          an Event of Default is in existence.

          (b) LIBOR  Conversion.  Subject to the provisions  hereof  (including,
     without limitation Section 2.04(a)) and as long as there exists no Event of
     Default,  the  Borrower  shall  have the  option  (A) to  elect to  convert
     outstanding  Prime  Rate  Loans in the  minimum  amount  of  $1,000,000  or
     increments of $500,000 thereof to LIBOR Rate Loans and (B) effective on and
     as of the expiration  date of the Interest  Period of a LIBOR Rate Loan, to
     continue such LIBOR Rate Loan;  provided,  however,  that a LIBOR Rate Loan
     may only be  continued  pursuant  to clause  (B)  above if the  outstanding
     principal  amount of such LIBOR Rate Loan equals or exceeds  $1,000,000  or
     increments of $500,000  thereof.  The Borrower  shall deliver a notice (the
     "Notice  of  Conversion/Continuation")  to the Bank no later than 1:00 P.M.
     (Boston  time) at least two (2)  Business  Days in advance of the  proposed
     conversion/continuation date. A Notice of Conversion/Continuation shall, in
     the case of a  conversion  to, or  continuation  of, a LIBOR Rate Loan,  be
     irrevocable  and shall be given by the  Borrower  in the form of Exhibit G,
     appropriately completed to specify (i) the proposed conversion/continuation
     date (which shall be a Business Day), (ii) the amount of the Credit Advance
     to  be  converted/continued,   (iii)  whether  the  Credit  Advance  to  be
     converted/continued is a Prime Rate Loan or a LIBOR Rate Loan, and (iv) the
     requested Interest Period. In lieu of delivering the above-described Notice
     of  Conversion/Continuation,  the  Borrower  may give  the Bank  telephonic
     notice by the required time of any proposed  conversion/continuation  under
     this Section 2.04. If the Borrower has failed to deliver timely a Notice of
     Conversion/Continuation  or to give such a  telephonic  notice with respect


                                       10


     to, a LIBOR Rate Loan,  the Borrower  shall be deemed to have  delivered to
     the Bank a Notice of Conversion/Continuation electing to convert such LIBOR
     Rate Loan into a Prime Rate Loan. Any notice  pursuant to this Section 2.04
     (including  any  telephonic  notice) shall be  irrevocable on and after the
     date of delivery  thereof to the Bank,  and the Borrower  shall be bound to
     convert or continue in accordance therewith.

          (c) Determination of Interest Rate. As soon as practicable after 10:00
     A.M. (Boston time) on an Interest Rate  Determination  Date, the Bank shall
     determine  (which  determination  shall,  absent  manifest error, be final,
     conclusive and binding) the Applicable  LIBOR Rate,  which rate shall apply
     to the LIBOR Rate Loans for which an interest rate is then being determined
     for the applicable Interest Period, and the Bank shall promptly give notice
     thereof to the Borrower.

          (d) Substituted  Rate of Borrowing.  In the event that on any Interest
     Rate  Determination  Date the Bank shall have reasonably  determined (which
     determination  shall,  absent  manifest  error,  be final,  conclusive  and
     binding) that:

               (i) by reason of any  changes  affecting  the  LIBOR  market,  or
          affecting  the position of the Bank in such market,  adequate and fair
          means do not exist for  ascertaining  the applicable  interest rate by
          reference to the LIBOR Rate with respect to the LIBOR Rate Loans as to
          which an interest rate determination is then being made; or

               (ii)  by  reason  of (A)  any  change  in any  applicable  law or
          governmental rule, regulation or order (or any interpretation  thereof
          and including the  introduction of any new law or  governmental  rule,
          regulation  or order) or (B) other  circumstances  affecting the Bank,
          the LIBOR  market or the position of the Bank in such market (such as,
          for  example,  but  not  limited  to,  official  reserve  requirements
          required by  Regulation  D to the extent not given effect in the LIBOR
          Rate), the LIBOR Rate shall not represent the effective pricing to the
          Bank for  dollar  deposits  of  comparable  amounts  for the  relevant
          period;

     then,  and in any such event,  the Bank shall promptly (and in any event as
     soon as  possible  after  being  notified  of a  borrowing,  conversion  or
     continuation)   give  notice  to  the   Borrower  of  such   determination.
     Thereafter,  the  Borrower  shall pay to the Bank with respect to the LIBOR
     Rate Loans of the Borrower,  upon written demand therefor,  such additional
     amounts  (in the form of an  increased  rate of, or a  different  method of
     calculating, interest or otherwise as the Bank in its sole discretion shall
     reasonably  determine)  as shall be  required  to cause the Bank to receive
     interest  with  respect to such LIBOR  Rate Loans for the  Interest  Period
     following that Interest Rate  Determination  Date (the  "Affected  Interest
     Period")  at a rate  equal to 2.0% per  annum in  excess  of the  effective
     pricing to the Bank for dollar deposits to make or maintain such LIBOR Rate
     Loans.  A certificate  as to additional  amounts owed the Bank,  showing in
     reasonable detail the basis for the calculation thereof,  submitted in good
     faith to the Borrower by the Bank, shall,  absent manifest error, be final,
     conclusive and binding.



                                       11


          (e) Required Termination and Prepayment. In the event that on any date
     the Bank shall  have  reasonably  determined  (which  determination  shall,
     absent manifest error, be final, conclusive and binding) that the making or
     continuation  of LIBOR Rate Loans has become  unlawful by compliance by the
     Bank in good faith with any law,  governmental  rule,  regulation  or order
     (whether  or not  having  the force of law and  whether  or not  failure to
     comply therewith would be unlawful),  then, and in any such event, the Bank
     shall  promptly  give  notice to the  Borrower of that  determination.  The
     obligation of the Bank to make or maintain such LIBOR Rate Loans during any
     such period shall be  determined at the earlier of the  termination  of the
     Interest  Period then in effect or when  required by law,  and the Borrower
     shall,  no later than the  termination of the Interest  Period in effect at
     the time any such  determination  pursuant to this Section 2.04(e) is made,
     or earlier when required by law, repay such LIBOR Rate Loans, together with
     all interest accrued thereon or automatically  convert the LIBOR Rate Loans
     to a Prime Rate Loan subject to payment of amounts  payable  under  Section
     2.09.

          (f) Compensation. The Borrower shall compensate the Bank, upon written
     request from the Bank (which  request shall set forth in reasonable  detail
     the basis for  requesting  such  amounts),  for all  losses,  expenses  and
     liabilities (including,  without limitation,  any interest paid by the Bank
     to lenders of funds  borrowed by Bank to make or carry the LIBOR Rate Loans
     and any loss sustained by the Bank in connection  with the  reemployment of
     such funds) that the Bank may sustain with respect to the  Borrower'  LIBOR
     Rate Loans:  (i) if for any reason (other than a default or manifest  error
     by the Bank) a  borrowing  of any LIBOR  Rate Loan does not occur on a date
     specified  therefor in a notice of  borrowing  or a  telephone  request for
     borrowing or conversion/continuation,  or a successive Interest Period does
     not commence  after notice thereof is given;  (ii) if, for any reason,  any
     prepayment of any LIBOR Rate Loan occurs on a date that is not the last day
     of the Interest  Period  applicable to such LIBOR Rate Loan;  (iii) if, for
     any reason,  any prepayment of the LIBOR Rate Loans is not made on the date
     specified in a notice of  prepayment  given by the Borrower with respect to
     such LIBOR Rate Loan; or (iv) as a consequence  of any other default by the
     Borrower to repay such LIBOR Rate Loans when, and on the terms, required by
     the terms of this Agreement.

          (g) Quotation of LIBOR Rate. Notwithstanding anything contained herein
     to the contrary,  if on any Interest Rate Determination Date the LIBOR Rate
     is  unavailable  by reason of the  failure  of the  referenced  lenders  to
     provide offered quotations to the Bank in accordance with the definition of
     "LIBOR Rate",  the Bank shall give the Borrower  prompt notice  thereof and
     any LIBOR Rate Loans requested shall be made as Prime Rate Loans.

          (h) LIBOR Rate Taxes. The Borrower agrees that:

               (i)  Promptly  upon  notice  from the Bank to the  Borrower,  the
          Borrower  will  pay,  prior  to the  date on  which  penalties  attach
          thereto, all present and future income, stamp and other taxes, levies,
          or costs and charges whatsoever imposed, assessed, levied or collected
          on or in  respect  of a  Credit  Advance  solely  as a  result  of the
          interest  rate being  determined by reference to the LIBOR Rate and/or


                                       12


          the provisions of this Agreement relating to the LIBOR Rate and/or the
          recording,  registration,  notarization or other  formalization of any
          thereof  and/or any payments of  principal,  interest or other amounts
          made on or in respect of a Credit  Advance when the  interest  rate is
          determined  by  reference  to the LIBOR Rate (all such taxes,  levies,
          cost and charges being herein collectively called "LIBOR Rate Taxes");
          provided  that LIBOR Rate Taxes shall not include  taxes imposed on or
          measured by the net income of the Bank by the  country  under the laws
          of which the Bank is organized or any political  subdivision or taxing
          authority  thereof or therein,  or taxes imposed on or measured by the
          net income of any branch or subsidiary  of the Bank (whether  gross or
          net income) by any  jurisdiction or subdivision  thereof in which that
          branch or subsidiary is doing  business.  The Borrower  shall also pay
          such  additional  amounts  equal to increases in taxes  payable by the
          Bank,  which  increases  are  attributable  to  payments  made  by the
          Borrower  described  in the  immediately  preceding  sentence  or this
          sentence.  Notwithstanding  anything contained in this Section 2.04(h)
          to the contrary,  in the event that the Bank shall recover any amounts
          in  respect  of  LIBOR  Rate  Taxes  as to  which  the  Borrower  have
          previously  rendered  payment to Bank,  then Bank shall  reimburse the
          Borrower in full for such  amounts.  Promptly  after the date on which
          payment of any such LIBOR Rate Tax is due pursuant to applicable  law,
          the  Borrower  will  at the  request  of the  Bank,  furnish  to  Bank
          evidence,  in form  and  substance  satisfactory  to  Bank,  that  the
          Borrower have met its obligation under this Section 2.05(h); and

               (ii) The Borrower will indemnify the Bank against,  and reimburse
          the Bank on demand for, any LIBOR Rate Taxes as determined by the Bank
          in its good faith discretion. The Bank shall provide the Borrower with
          appropriate  receipts for any payments or  reimbursements  made by the
          Borrower pursuant to this clause (ii).

          (i) Booking of LIBOR Rate Loans.  The Bank may make, carry or transfer
     LIBOR Loans at, to, or for the account of, any of its branch offices or the
     office of an affiliate of the Bank.

          (j) Increased  Costs.  If, by reason of (i) the introduction of or any
     change in (including,  without limitation,  any change by way of imposition
     or increase of reserve requirements),  or in the interpretation of, any law
     or regulation or (ii) the compliance with any guideline or request from any
     central bank or other governmental authority or quasigovernmental authority
     exercising control over banks or financial  institutions generally (whether
     or  not  having  the  force  of  law),  any  reserve  (including,   without
     limitation,  any imposed by the Federal Reserve Board),  special deposit or
     similar requirement against assets of, deposits with or for the account of,
     or credit  extended by, the Bank or its applicable  lending office shall be
     imposed or deemed applicable or other condition  affecting any of its LIBOR
     Rate Loans or its obligation to make such LIBOR Rate Loans shall be imposed
     on the  Bank or its  applicable  lending  office  or the  London  interbank
     market,  and as a result thereof there shall be any increase in the cost to
     the Bank of agreeing to make or making,  funding or maintaining  such LIBOR
     Rate  Loans,  or there  shall be a  reduction  in the  amount  received  or


                                       13


     receivable by the Bank,  then,  upon written  notice from and demand by the
     Bank,  the  Borrower  shall  pay to the Bank for the  account  of the Bank,
     within  five  Business  Days after the date  specified  in such  notice and
     demand,  additional  amounts  sufficient to indemnify the Bank against such
     increased cost. A certificate in reasonable detail as to the amount of such
     increased cost,  submitted to the Borrower by the Bank,  shall,  except for
     manifest error, be final, conclusive and binding for all purposes.

          (k)  Assumptions   Concerning   Funding  of  LIBOR  Rate  Loans.   The
     calculation  of all  amounts  payable to the Bank under this  Section  2.04
     shall be made as though the Bank had  actually  funded the LIBOR Rate Loans
     through the purchase of a LIBOR deposit bearing  interest at the LIBOR Rate
     applicable  to such  LIBOR  Rate  Loan,  in the case of a LIBOR  Rate Loan,
     through the transfer of such LIBOR  deposit from an offshore  office of the
     Bank to a domestic office of such Bank in the United States of America;  it
     being  understood  that the Bank may fund LIBOR Rate Loans in any manner it
     sees  fit and the  foregoing  assumption  shall  be  utilized  only for the
     calculation of amounts payable under this Section 2.04.

          (l) LIBOR Rate Loans After Default. After the occurrence of and during
     the continuance of an Event of Default,  the Borrower may not elect to have
     a Credit  Advance be continued as, or converted to, a LIBOR Rate Loan after
     the  expiration  of any  Interest  Period  then in effect  for such  Credit
     Advance.

     Section  2.05.  Special  Provisions   Governing   Alternative   Currencies.
Notwithstanding  any other  provisions of this  Agreement to the  contrary,  the
following  provisions shall govern with respect to any Credit Advance to be made
in an Alternative Currency:

          (a)  General.  Subject to the terms and  conditions  contained in this
     Agreement,  the  Borrower  and the Bank  shall  separately  agree as to the
     procedures, documentation, lending office and other matters relating to any
     Loan  to be  made  in an  Alternative  Currency,  all  of  which  shall  be
     consistent, and in accordance,  with the customary practices and procedures
     of the Bank. When making requests for any Loan in an Alternative  Currency,
     the Borrower shall specify to the Bank (i) the type of Alternative Currency
     for such Loan, (ii) the principal amount of such Loan and (iii) the term of
     such Loan. Subject to the customary  practices and procedures of the Bank.,
     the term for any Loan in an Alternative Currency shall be not less than one
     (1) week  and not  more  than  six (6)  months.  No Loan in an  Alternative
     Currency may mature after the Maturity Date.

          (b) Availability.  If the Bank determines that maintenance of any Loan
     denominated an any  Alternative  Currency would violate any applicable law,
     rule, regulation or directive,  whether or not having the force of law, and
     notifies the  Borrower of such  determination,  then the affected  currency
     shall cease to be an  Alternative  Currency and the Bank shall  suspend the
     availability  of the affected  currency of Credit  Advance and, if the Bank
     determines  that it is necessary,  require that any Credit  Advances of the
     affected currency be immediately repaid.

          (c) Judgment Currency. If for the purpose of obtaining judgment in any
     court, it is necessary to convert a sum due from the Borrower  hereunder or


                                       14


     under the Credit Note in the  currency  expressed  to be payable  herein or
     under the Credit Note (the "specified currency") into another currency, the
     parties hereto agree to the fullest extent that they may effectively do so,
     that the rate of exchange used shall be that at which,  in accordance  with
     normal banking  procedures,  the Bank could purchase the specified currency
     with such other  currency at the Bank's main Boston  office on the Business
     Day preceding  that on which final  non-appealable  judgment is given.  The
     obligations of the Borrower in respect of any sum due to the Bank hereunder
     or under the Credit Note shall,  notwithstanding any judgment in a currency
     other than the specified currency, be discharged only to the extent that on
     the Business Day following receipt by the Bank of any sum adjudged to be so
     due in such other  currency to the Bank may,  in  accordance  with  normal,
     reasonable  banking  procedures,  purchase the specified currency with such
     other  currency.  If the amount of the  specified  currency so purchased is
     less than the sum  originally  due to the Bank, in the specified  currency,
     the Borrower  agrees,  to the fullest extent that it may effectively do so,
     as  a  separate  obligation  and  notwithstanding  any  such  judgment,  to
     indemnify  the Bank against such loss,  and if the amount of the  specified
     currency so  purchased  exceeds the sum  originally  due to the Bank in the
     specified currency, the Bank agrees to remit such excess to the Borrower.

     Section 2.06. Method of Payment. All payments (including prepayments) to be
made by the Borrower  hereunder and under the Credit Note, whether on account of
principal,  interest,  fees or  otherwise,  shall  be made  without  set-off  or
counterclaim and shall be made prior to 1:00 P.M., Boston,  Massachusetts  time,
on the due date  thereof,  at the  office of the Bank  located  at 225  Franklin
Street, Boston, Massachusetts 02110 (or such other place as the Bank may specify
in writing from time to time), (a) in the case of each Loan made in Dollars,  in
Dollars,  and (b) in the case of each Loan made in an Alternative  Currency,  in
such  Alterative  Currency.   All  such  payments  (including   prepayments)  in
immediately available funds. If any payment hereunder becomes due and payable on
a day other than a Business  Day,  such  payment  shall be  extended to the next
succeeding  Business Day,  and, with respect to payments of principal,  interest
thereon shall be payable at the then applicable rate during such extension.  All
payments of  principal,  interest or fees to be made to the Bank may be effected
by the Bank  debiting  accounts  of the  Borrower  with the Bank and  sending an
advice thereof to the Borrower.

     Section 2.07. Voluntary Prepayments on the Credit.

          (a) Subject to Section 2.08, the Borrower may make  prepayments to the
     Bank of any  outstanding  principal  amount of any  portion  of any  Credit
     Advance which is a Prime Rate Loan in accordance  with this Section 2.07 at
     any time prior to 1:00 p.m. (Boston time) on any Business Day.

          (b) The  Borrower may make  prepayments  to the Bank on any portion of
     any  Credit  Advance  which is a LIBOR  Rate Loan  subject to the terms and
     conditions of Sections 2.08 and 2.09.

     Section  2.08.  Payment  and  Interest  Cutoff.  Notice of each  prepayment
pursuant to Section 2.07 shall be given to the Bank in the case of prepayment of


                                       15


Prime Rate Loans, not later than 1:00 p.m. (Boston time) on the date of payment,
and shall  specify the total  principal  amount of the Credit to be paid on such
date.  Notice of prepayment  having been given in  compliance  with this Section
2.07,  the amount  specified  to be prepaid  shall become due and payable on the
date  specified for prepayment and from and after said date (unless the Borrower
shall default in the payment  thereof)  interest  thereon shall cease to accrue.
Unpaid  interest  on the  principal  amount of any  Credit  Advances  so prepaid
accrued to the date of prepayment shall be due on the date of prepayment.

     Section 2.09.  Prepayment of Credit.  In the event of any prepayment of the
Borrower's obligations to the Bank in respect of LIBOR Rate Loans, either at the
Borrower's initiative or upon the exercise by the Bank of its rights in the case
of an Event of Default,  the Borrower  agrees to pay to the Bank the Bank's lost
net interest  income  resulting from the prepayment.  Therefore,  the Borrower's
payment to the Bank shall  consist of all  principal  amounts  outstanding,  all
interest owing up to the date of such prepayment or demand by the Bank, together
with the Bank's lost net interest income, if any, computed as described below.

     As of the date of prepayment, or as of the date of demand after an Event of
Default, the Bank will determine the interest rate differential between the rate
stated  in the  Note to the Bank and the  yield  on a United  States  Government
Treasury  Note with the maturity  closest to the Note as the same is reported in
the Wall Street  Journal (or if not so reported,  as the same is reported in its
successor  or  another  national   publication  similar  thereto)  of  that  day
(reporting the previous day's activity). In the event that the rate differential
so  determined  is such that the  Treasury  Note yield is greater  than the Note
yield,  no lost net interest income shall be paid to the Bank, nor shall any sum
be owed to the Bank by the Borrower solely for any lost net income.

     In the event that the rate differential so determined is such that the Note
yield  is  greater  than  the  Treasury  Note  yield,  the  difference  shall be
multiplied by the outstanding  principal  balance of the Note,  computed monthly
for the  remaining  term of the LIBOR  Rate  Loans;  the  present  value of such
monthly  computation  shall be  calculated  and paid to the Bank as its lost net
interest income.  For the purpose of computing  present value, the interest rate
used for discounting  shall be the bond equivalent yield of the six month United
States  Treasury Bill rate as reported in the Wall Street  Journal (or if not so
reported,  as  the  same  is  reported  in its  successor  or  another  national
publication   similar  thereto)  of  that  day  (reporting  the  previous  day's
activity).

     Section 2.10. Expenses. The Borrower shall pay the Bank on demand all
reasonable  out-of-pocket  fees and expenses  incurred by the Bank in connection
with  examinations  of the books and records of the Borrower,  appraisals of the
assets of the Borrower and visits to the  Borrower by  officers,  employees  and
agents of the Bank. The Borrower shall cooperate fully with the Bank's officers,
employees and agents in connection with each audit or appraisal performed.

     Section 2.11. [Intentionally Omitted].

     Section 2.12.  Commitment Fee. The Borrower shall pay the Bank a commitment
fee (the  "Commitment  Fee") quarterly in arrears on the last day of each fiscal


                                       16


quarter commencing September 30, 1998, in an amount equal to the quotient of (i)
the  product of (A) the total  unused  portion of the Credit for each day within
the fiscal quarter then ended, multiplied by (B) a rate equal to one half of one
percent (.50%), divided by (ii) the actual number of days in such quarter.

     Section  2.13.  Use of Credit  Proceeds;  No  Credit  Proceeds  to  Foreign
Subsidiaries.

          (a) Use of Credit  Proceeds.  The proceeds of the Credit shall be used
     by the Borrower to refinance existing  Indebtedness of the Borrower and its
     Subsidiaries  (other  than  its  Foreign   Subsidiaries)  of  approximately
     $9,500,000 and for general working capital purposes of the Borrower and its
     Subsidiaries (other than its Foreign Subsidiaries).

          (b) No Credit Proceeds to Foreign  Subsidiaries.  Notwithstanding  any
     provision  contained  in  any  of  the  Credit  Documents  (including  this
     Agreement)  to the  contrary,  the  Borrower  will not,  and will cause its
     Subsidiaries not to, transfer or otherwise make available any proceeds from
     any Credit Advance to any Foreign Subsidiary for any purpose.

     Section 2.14 Letters of Credit.

          (a)  Issuance  Procedures.  The Borrower may request and the Bank will
     issue  commercial  and standby  letters of credit (such  letters of credit,
     together  with any renewals,  collectively,  the "L/Cs") for the account of
     the Borrower.  With each request, the Borrower shall deliver to the Bank an
     L/C application and L/C agreement,  together with the proposed form of such
     L/C (which, together with all schedules and exhibits thereto),  shall be in
     form and substance satisfactory to the Bank and it Special Counsel and such
     other certificates,  documents and other papers and information as the Bank
     may reasonably request. Any foreign beneficiary must be satisfactory to the
     Bank.  All L/Cs  shall be for a period not to exceed  (i) one  hundred  and
     eighty (180) days (for  commercial  L/Cs),  or (ii) three hundred and sixty
     (360) days (for  standby  L/Cs),  and must expire at least one day prior to
     the Maturity  Date.  Within five  Business  Days  following  receipt of the
     above-described  documents in satisfactory  form, the Bank shall,  provided
     that no (i) Event of Default  exists or would  exist upon  issuance of such
     L/C and (ii) no event exists which, with the giving of notice or passage of
     time, or both, would constitute an Event of Default, issue such L/C.

          (b)  L/Cs  -  Foreign  Subsidiaries.   Notwithstanding  any  provision
     contained in any of the Credit Documents  (including this Agreement) to the
     contrary,  the Borrower will not request,  and the Bank will not issue, any
     L/C for the benefit of any  Foreign  Subsidiary  or any  creditor or equity
     holder thereof.

          (c)  Reimbursement.  The Borrower  agrees to pay the Bank on each date
     that any amount is drawn  under an L/C, a sum equal to the amount so drawn.
     The  Borrower  agrees  to pay on  demand  any and all  reasonable  expenses
     incurred by the Bank in enforcing  any rights under this Section  2.14.  In
     the event any L/C is  payable  in  foreign  currency,  the  Borrower  shall


                                       17


     reimburse the Bank at the Bank's  selling rate of exchange on the date such
     reimbursement is made.

          (d)  Commission.  The Borrower agrees to pay the Bank in advance a fee
     equal to the face amount of any L/C after the date hereof multiplied by the
     Applicable  Margin  (prorated  based upon the number of days from the issue
     date to the expiration date),  together with any transactional fees, at the
     Bank's customary rates.

          (e) Method of Payment.  The Bank is authorized to obtain reimbursement
     for any L/C by making  advances  under the  Credit.  The Bank may make such
     advance even if it causes the outstanding  balance to exceed the limits set
     forth in Section  2.01(a) and the making of such advance  shall be an Event
     of Default under Article VI.

          (f) Amount. The aggregate amount of L/Cs outstanding at any time shall
     not exceed $2,500,000.



                                       18




ARTICLE III.  REPRESENTATIONS AND WARRANTIES

     The Borrower hereby represents and warrants that:

     Section 3.01. Corporate Existence and Power,  Organizational Structure. The
Borrower  and  each  Subsidiary  is a  corporation  duly  incorporated,  validly
existing and in good standing under the laws of the  jurisdiction in which it is
organized,  and has full  corporate and other power and authority to conduct its
business  and own its assets as now  conducted  and owned and as  proposed to be
conducted and owned.  The Borrower and each  Subsidiary is licensed or qualified
as a foreign  corporation in each jurisdiction where the conduct of its business
or the ownership of its assets require such licensing or  qualification,  except
where the  failure  to be so  licensed  or  qualified  would not have a material
adverse effect upon the business,  assets,  operations or financial condition of
the Borrower or such Subsidiary,  as the case may be. All issued and outstanding
shares  of  capital  stock of the  Borrower  and any  Subsidiary  have been duly
authorized, validly issued, fully paid and are non-assessable.

     Section 3.02.  Subsidiaries.  The ownership  structure and  jurisdiction of
incorporation  of each  Subsidiary  is as set forth in  Schedule  3.02  attached
hereto.  Except as set forth in Schedule  3.02,  the Borrower  currently  has no
Subsidiaries or any equity investments in any other entity.

     Section 3.03. Power and Authority Relative to Borrowing;  Legal and Binding
Nature, Compliance with Other Instruments.  The Borrower and each Subsidiary has
full power and authority  and has taken all required  corporate and other action
necessary to permit it to execute and deliver and perform all of its obligations
contained  in the  Credit  Documents  to  which  it is a  party,  and to  borrow
hereunder, and none of such actions will violate any provision of law applicable
to it, or of its charter or by-laws,  or result in the breach of or constitute a
default  under any agreement or instrument to which it is a party or by which it
is bound. Each of the Credit Documents to which the Borrower and each Subsidiary
is a party has been (or will upon  execution  be) duly  authorized  and  validly
executed and are (or will upon  execution be) the valid and binding  obligations
of the  Borrower  and each  Subsidiary  enforceable  in  accordance  with  their
respective terms.  Neither the execution or delivery by each of the Borrower and
its  Subsidiaries of any of the Credit  Documents to which it is a party nor the
performance of its  obligations  thereunder,  requires the consent,  approval or
authorization of any person or governmental authority.

     Neither the Borrower nor any  Subsidiary is in violation of any term of its
charter  or  by-laws  or of  any  agreement,  instrument,  mortgage,  indenture,
contract,  judgment,  decree, order,  statute,  rule or governmental  regulation
applicable  to it.  The  execution,  delivery  and  performance  of  the  Credit
Documents will not result in the creation of any Lien (other than Liens in favor
of the  Bank)  upon any of the  properties  or  assets  of the  Borrower  or any
Subsidiary.

     Section 3.04. Financial Condition. The audited consolidated financial
statements  of the  Borrower  dated as of December  31,  1997 and the  unaudited
consolidated  financial statements of the Borrower and its Subsidiaries dated as
of March 31, 1998 (the "Base Financial  Statements")  have been delivered to the
Bank. The Base Financial  Statements are complete and correct and present fairly


                                       19


and accurately the financial position of the Borrower and its Subsidiaries, on a
consolidated  and  consolidating  basis,  as of the date of the  Base  Financial
Statements are in conformity with GAAP consistently applied. Except as set forth
on Schedule 3.04 attached  hereto,  neither the Borrower nor any  Subsidiary has
any  contingent  liability or liability for taxes,  or any unusual or burdensome
agreement  or  commitment  which would have a materially  adverse  effect on its
business assets,  operations or financial condition,  except as disclosed in the
Base Financial Statements and in this Agreement.

     After  giving  effect  to the  financing  provided  for in this  Agreement,
neither the Borrower nor any Guarantor will: (a) have liabilities (contingent or
otherwise)  which exceed the fair and salable  value of its assets;  (b) be left
with unreasonably  small capital with which to engage in its business;  (c) have
incurred, or anticipate or reasonably should anticipate incurring,  debts beyond
its ability to pay such debts as they mature.

     Section 3.05. No Material  Adverse Change.  Except as set forth in Schedule
3.05 attached hereto,  since the date of the Base Financial Statements there has
been no material adverse change in the business,  assets, operation or condition
(financial  or  otherwise)  of the Borrower or any  Subsidiary,  and neither the
Borrower nor any Subsidiary has paid any dividends or made any  distributions on
or purchased or otherwise acquired any shares of the Borrower's capital stock or
the stock of any Subsidiary.

     Section  3.06.  Litigation;  Employment  and Labor.  Except as set forth in
Schedule 3.06 attached hereto,  there are no suits or proceedings pending or, to
the best knowledge of the Borrower, threatened against or affecting the Borrower
or any  Subsidiary  which would have a material  adverse effect on the business,
assets or financial condition of the Borrower or any Subsidiary.

     There are no controversies  pending or, to the best of the knowledge of the
Borrower  after due  inquiry,  threatened,  between the  Borrower and any of its
employees or any Subsidiary and its  employees,  other than employee  grievances
arising in the  ordinary  course of business  which are not,  in the  aggregate,
material to the  financial  condition,  results of  operation or business of the
Borrower or any  Subsidiary.  The Borrower is in compliance with all federal and
state laws respecting employment and employment terms, conditions and practices.
Neither the  Borrower nor any  Subsidiary  has union  representation  questions,
grievances,  discrimination  or unfair  labor  practice  complaints  pending  or
threatened  against it before any state or  federal  board or agency  respecting
employment and employment terms, conditions and practices, the failure to comply
with which could have a material  adverse  effect on its business or  operations
or, to the best of their knowledge, after due inquiry, any basis therefor.

     Section 3.07. Title.  Except as set forth in Schedule 3.07 attached hereto,
the  Borrower and each  Subsidiary  has good and  marketable  title to, or valid
leasehold interests in, all of the properties and assets and leasehold interests
reflected in the Base Financial Statements,  or acquired since such date (except
for materials used,  inventory  sold,  accounts  receivable  collected and other
items disposed of, all in the ordinary  course of business since the date of the
Base Financial  Statements),  free and clear of all Liens except Liens permitted
by Section 5.12, and easements, restrictions and minor defects in title which do


                                       20


not, either  individually or in the aggregate  materially detract from the value
or materially limit the use of any real property.

     Section  3.08.  Tax Returns and  Payments.  Except as set forth in Schedule
3.08 attached hereto, all of the tax returns and tax reports of the Borrower and
its Subsidiaries required by law to be filed have been duly filed, or extensions
of the time for  filing  have  been  duly  obtained,  and the  Borrower  and its
Subsidiaries  have paid all  taxes  shown  due  thereon.  Except as set forth in
Schedule  3.08,  the  federal  income  tax  returns  of  the  Borrower  and  its
Subsidiaries have never been audited (or, in the case of a Subsidiary,  have not
been audited since the date of its  acquisition by the Borrower) by the Internal
Revenue  Service.  There are in effect no waivers of the applicable  statutes of
limitations  for federal  taxes for any period.  Except as set forth in Schedule
3.08, no  deficiency  assessment  or proposed  adjustment of the federal  income
taxes  of the  Borrower  or any  Subsidiary  is  pending,  and  to the  best  of
Borrower's knowledge, there is no proposed liability of a substantial nature for
any tax to be imposed  upon any of its assets for which there is not an adequate
reserve reflected in the Base Financial Statements.

     Section  3.09.  Compliance  with Law.  Except as set forth in Schedule 3.09
attached hereto, the Borrower and each Subsidiary has all necessary  franchises,
permits,  licenses  and other  rights to allow it to  conduct  its  business  as
presently  conducted and as proposed to be  conducted,  and neither the Borrower
nor any  Subsidiary  is in  default  with  respect to any order or decree of any
court, or under any law, order or regulation of any governmental  authority,  or
under the  provisions  of any contract or agreement to which it is a party or by
which it may be bound, which default would have a material adverse effect on its
business, assets, operations or financial condition.

     Section  3.10.  Pension  Matters.  Except  as set  forth in  Schedule  3.10
attached  hereto,  neither the Borrower nor any  Subsidiary has incurred (a) any
material  accumulated  funding  deficiency  within the  meaning of the  Employee
Retirement  Income  Security  Act of  1974,  as  amended  ("ERISA"),  or (b) any
material liability to the Pension Benefit Guaranty Corporation established under
ERISA (or any successor  thereto  under ERISA) in  connection  with any employee
benefit  plan  established  or  maintained  by it;  neither the Borrower nor any
Subsidiary has had any tax assessed  against it by the Internal  Revenue Service
for any alleged  violation  under  Section 4975 of the Internal  Revenue Code of
1986, as amended (the "Code").  Neither the Borrower nor any  Subsidiary has any
material unfunded  liability under a pension plan or a contingent  liability for
withdrawal  from a  multi-employer  pension plan except as disclosed in the Base
Financial Statements.

     Section  3.11.  Compliance  with  Regulation U. None of the proceeds of the
Credit will be used to purchase,  carry or refinance  any borrowing the proceeds
of which  were used to  purchase  or carry any  "margin  securities"  within the
meaning of Regulation U of the Board of Governors of the Federal Reserve System.

     Section 3.12. Credit Agreements. Set forth in Schedule 3.12 attached hereto
is a complete and correct list of all existing loan agreements, indentures, note
purchase  agreements,  guarantees or other instruments relating to extensions of
credit or money  borrowed  for an amount in excess of  $100,000  under which the
Borrower or any Subsidiary is or may become directly or indirectly obligated.



                                       21


     Section  3.13.  Leases and Options to Purchase.  Set forth on Schedule 3.13
attached  hereto is a complete  and  correct  list of all  existing  leases with
respect to, or options to purchase any, real estate or any equipment involving a
commitment,  potential commitment,  or series of commitments in any twelve month
period,  in excess of $100,000  under which the Borrower or any Subsidiary is or
may become directly or indirectly obligated as lessee or purchaser.

     Section 3.14.  Insolvency.  Neither the Borrower nor any Subsidiary has (a)
made a general assignment for the benefit of creditors,  (b) filed any voluntary
petition in bankruptcy or suffered the filing of an involuntary  petition by its
creditors,  (c) suffered the appointment of a receiver to take possession of all
or  substantially  all of its  assets,  (c)  suffered  the  attachment  or other
judicial  seizure of all, or  substantially  all of its assets,  (d) admitted in
writing its inability to pay its debts as they come due, or (e) made an offer of
settlement, extension or composition to its creditors generally.

     Section  3.15.  Real Estate  Owned.  Except as set forth in  Schedule  3.15
attached hereto, neither the Borrower nor any Subsidiary owns any real property.

     Section  3.16.  Hazardous  Waste.  Except  as set  forth in  Schedule  3.16
attached hereto,  neither the Borrower nor any Subsidiary has generated,  stored
or disposed of any oil, hazardous  substance or hazardous material as defined in
the  Comprehensive  Environmental  Response  Compensation  and Liability Act, as
amended,  42  U.S.C.  '9601,  et seq.,  applicable  state or  federal  laws,  or
regulations  adopted  pursuant  thereto,  in violation of  applicable  law; and,
except  as set  forth  in  Schedule  3.16  attached  hereto,  to the best of the
Borrower's knowledge, there has been no generation,  storage, or disposal of any
such materials by anyone else on the property owned or leased by the Borrower or
any Subsidiary, nor have any such materials been present on such property.

         Section 3.17.  Permits.  All necessary licenses and permits for the use
and  occupancy  of the real  property  owned or leased by the  Borrower and each
Subsidiary  have been  issued  and are in full force and  effect,  except as set
forth in  Schedule  3.17  attached  hereto and except for any such  licenses  or
permits,  the absence of which would not have a material adverse effect upon the
business,  assets,  operations  or  financial  condition of the Borrower or such
Subsidiary.

     Section  3.18.  SEC  Filings;  No  Omissions.   None  of  the  registration
statements or reports (including, without limitation, reports on Form 10-K, Form
10-Q and Form 8-K) filed by the Borrower  with the SEC, as amended,  modified or
supplemented  from  time to time,  contains  as of the date  hereof  any  untrue
statement of a material fact or omitted to state any material fact  necessary to
make the statements therein, in light of the circumstances under which they were
made, not misleading.

     The making of Credit  Advances  hereunder,  the application of proceeds and
the  repayment  by  the  Borrower  and  the  consummation  of  the  transactions
contemplated  by this  Agreement  have not and will not violate any provision of
any federal or state securities loans, rules or regulations, or any order issued
by the SEC  (collectively,  "Securities  Laws").  Neither the  Borrower  nor any


                                       22


Subsidiary  has issued any  security in violation of any  Securities  Laws.  The
Borrower  agrees to indemnify  and hold the Bank  harmless  from and against any
claim in connection  with the violation or alleged  violation by the Borrower of
any Securities Laws.

     None  of the  representations  or  warranties  in  this  Agreement  nor any
document,  agreement,  statement,   certificate,   exhibit,  schedule  or  other
information  furnished or to be furnished by or on behalf of the Borrower to the
Bank pursuant to this Agreement contains any untrue statement of a material fact
or omits to state a material  fact  necessary  to make the  statements  of facts
contained therein not misleading.

     Section 3.19. Intellectual Property. The Borrower possesses 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 without known conflict with any rights of others.

     Section 3.20. Operation of Business on Consolidated Basis. The Borrower and
its  Subsidiaries  conduct a portion of their business on a consolidated  basis,
including,  but not limited to,  shared  management,  accounting,  marketing and
operations.  Any Credit  provided  to the  Borrower  under the Credit  Documents
benefits the  Borrower  and all  Subsidiaries  on a  consolidated  as well as an
individual basis.


ARTICLE IV.  CONDITIONS

     Section  4.01.  Conditions  to  the  Credit  and  the  First  Advance.  The
obligation  of the Bank to make the initial  advance under the Credit is subject
to the fulfillment of the following conditions:

          (a) Credit Documents. The Bank shall have received (i) this Agreement,
     executed and delivered by a duly authorized officer of the Borrower, with a
     counterpart  for the Bank, (ii) the Credit Note executed and delivered by a
     duly  authorized  officer  of the  Borrower,  (iii) the  Borrower  Security
     Agreement  and the  Borrower  Stock  Pledge  Agreement,  each  executed and
     delivered by a duly authorized  officer of the Borrower,  (iv) the Guaranty
     Agreement,  executed and delivered by a duly authorized  officer of each of
     the  Subsidiaries  (other  than  the  Foreign  Subsidiaries)  and  (v)  the
     Subsidiary  Security Agreements and the Subsidiary Stock Pledge Agreements,
     each executed and delivered by a duly authorized officer of each Subsidiary
     which is a party thereto.

          (b) Actions to Perfect Liens. The Bank shall have received evidence in
     form  and  substance  reasonably  satisfactory  to  it  that  all  filings,
     recordings, registrations and other actions, including, without limitation,
     the filing of duly executed financing  statements on form UCC-1,  necessary
     or, in the opinion of the Bank,  desirable to perfect the Liens  created by
     the Security  Documents  shall have been  completed (or, to the extent that
     any such  filings,  recordings,  registrations  and other actions shall not
     have  been  completed,  arrangements  satisfactory  to  the  Bank  for  the
     completion thereof shall have been made).



                                       23


          (c) Lien  Searches.  The Bank shall  have  received  the  results of a
     recent search by a Person  satisfactory  to the Bank, of the UCC,  judgment
     and tax lien  filings  which may have been filed with  respect to  personal
     property of the Borrower and each of its Subsidiaries in the  jurisdictions
     set forth in Schedule  4.01(c),  and the  results of such  search  shall be
     satisfactory to the Bank.

     (d) Pledged Stock;  Stock Powers. The Bank shall have received the original
     certificates representing the shares pledged pursuant to the Borrower Stock
     Pledge  Agreement  and  each of the  Subsidiary  Stock  Pledge  Agreements,
     together with an undated stock power for each such certificate  executed in
     blank  by a duly  authorized  officer  of the  Borrower  or the  applicable
     Subsidiary, whichever is applicable.

          (e) UCC-3 Termination  Statements.  The Bank shall have received UCC-3
     termination  statements and any other instrument necessary to terminate the
     Liens  granted by the Borrower or any of its  Subsidiaries  (other than its
     Foreign Subsidiaries) to any Person (other than the Bank)(or, to the extent
     that any such UCC-3  termination  statements or any other  instrument shall
     not have been obtained and filed, arrangements satisfactory to the Bank for
     the obtaining and filing thereof shall have been made).

          (f) Secretary's Certificate. The Borrower and each of the Subsidiaries
     (including  the Foreign  Subsidiaries)  shall have delivered to the Bank, a
     certificate of the Secretary or Assistant  Secretary (or Clerk or Assistant
     Clerk) of the Borrower and each such Subsidiary (in  substantially the form
     of Exhibit H attached hereto and dated as of the date of the Closing Date),
     certifying  (i) in the case of the  Borrower  and each of its  Subsidiaries
     (other than its Foreign  Subsidiaries),  the  charter  documents,  by-laws,
     consent votes of directors  and  incumbency of officers of the Borrower and
     each  such  Subsidiary;  and  (ii)  in the  case  of  each  of the  Foreign
     Subsidiaries,  the  charter  documents  and  by-law  of each  such  Foreign
     Subsidiary.

          (g) Officer's  Certificate.  The Borrower  shall have delivered to the
     Bank a certificate of a duly authorized officer of the Borrower  certifying
     that all conditions  precedent on the part of the Borrower to the execution
     and delivery hereof and the making of the initial  Revolving Credit Advance
     have been satisfied, in substantially the form of Exhibit I attached hereto
     and dated as of the date of the Closing Date.

          (h) Legal  Existence,  Good  Standing,  Tax Good  Standing and Foreign
     Qualification  Certificates.  The Bank shall have received (i) certificates
     of  legal  existence,   good  standing,   tax  good  standing  and  foreign
     qualification  for the Borrower,  and (ii) certificates of legal existence,
     good standing and foreign qualification from each of the Subsidiaries,  all
     of recent date issued by the appropriate governmental authorities.

          (i) Certificates of Insurance.  The Bank shall have received  evidence
     in form and substance  satisfactory  to it that all of the  requirements of
     this Agreement and those sections of the Security  Documents  requiring the
     maintenance of insurance shall have been satisfied.



                                       24


          (j) Legal Opinions from Counsel for the Borrower and  Guarantors.  The
     Bank shall have received the written opinion of Bryan Cave LLP,  counsel to
     the Borrower and the Guarantors,  in form  satisfactory to Peabody & Arnold
     LLP,  special  counsel to.the Bank (said special  counsel and any successor
     counsel shall be  hereinafter  referred to as "Special  Counsel")  covering
     such matters as the Bank or its Special Counsel may request.

          (k) No  Default.  No Event of Default  specified  in Article VI and no
     event  which,  under  Article  VI with the giving of notice or the lapse of
     time, or both,  would  constitute an Event of Default,  shall have occurred
     and be continuing.

          (l)  Material  Adverse  Change.  There  shall  not have  occurred  any
     material  adverse  change  in  the  condition   (financial  or  otherwise),
     operation,  properties,  assets, liabilities,  earnings or prospects of the
     Borrower  or its  Subsidiaries  since  the date the most  recent  financial
     statements were delivered to the Bank.

          (m) Miscellaneous  Requirements.  The Borrower shall have delivered to
     the Bank such other  documents  as the Bank or its  Special  Counsel  shall
     reasonably require.

     Section  4.02.  Conditions  to  Subsequent  Advances.  Each  request  for a
subsequent Credit Advance shall be deemed to be a representation by the Borrower
to the Bank that all  representations  and  warranties  contained in Article III
hereof or in any Exhibit,  Schedule or Certificate  attached hereto or delivered
to the Bank in connection  herewith were true and correct when made and continue
to be true  and  correct  as of the date of such  advance,  and that no Event of
Default specified in Article VI hereof,  and no event which,  under said Article
VI with the giving of notice or the lapse of time, or both,  would constitute an
Event of Default, has occurred and is then continuing.

ARTICLE V. COVENANTS OF THE BORROWER

     The Borrower hereby covenants as follows:

     Section  5.01.  Payment of Amounts Due. The Borrower will make all payments
of principal,  interest and other amounts in connection with the Credit Note and
this  Agreement  in  accordance  with the terms  hereof  and  thereof,  and will
observe,  perform and comply with all covenants,  terms and conditions contained
herein,  in the Credit  Note or in any other  Credit  Document  to be  observed,
performed  or  complied  with by it, and it will cause each of the  Subsidiaries
(other than the Foreign  Subsidiaries)  to comply with all the covenants,  terms
and  conditions in any Credit  Document to which it is a party,  or which by the
terms hereof is applicable to such Subsidiary.

     Section 5.02. Corporate Existence.  The Borrower will maintain and preserve
in full force and effect its corporate  existence and the corporate existence of
each  Subsidiary  and will  maintain and preserve in full force and effect,  and
will cause each  Subsidiary  to maintain  and preserve in full force and effect,
all material rights, licenses,  patents,  trademarks and franchises,  and comply


                                       25


with all applicable  regulations in all jurisdictions  necessary for the conduct
of their respective businesses.

     Section  5.03.  Maintenance  of  Properties.  The Borrower  will  maintain,
preserve,  protect  and  keep,  and will  cause  each  Subsidiary  to  maintain,
preserve,  protect  and keep,  all  properties  used or useful in the conduct of
their  respective  businesses  in good  repair,  working  order  and  condition,
ordinary  wear and tear  excepted,  and from time to time shall  make,  and will
cause each Subsidiary to make, such repairs, renewals, replacements, betterments
and  improvements  thereto as in the judgment of the  Borrower's  management are
necessary to permit such businesses to be properly and advantageously  conducted
at all times.

     Section 5.04. Payment of Taxes, Compliance with Laws. The Borrower will pay
and discharge,  and will cause each Subsidiary to pay and discharge,  all taxes,
assessments and  governmental  charges or levies imposed upon them or upon their
income or profits,  or upon any property belonging to them before the same shall
become in  default,  as well as all  lawful  claims  for  labor,  materials  and
supplies,  which,  if not paid when due, might become a Lien or charge upon such
property or any part thereof;  provided,  however, that neither the Borrower nor
any Subsidiary shall be required to pay and discharge any such tax,  assessment,
charge, levy or claim so long as the validity thereof shall be contested in good
faith by appropriate proceedings, an adequate reserve for the payment thereof is
established on the books of the Borrower or such  Subsidiary in accordance  with
GAAP,  and the  Borrower  or each  Subsidiary  shall pay such  tax,  assessment,
charge,  levy or claim before any taxing  authority  files any Lien with respect
thereto.

     The Borrower  will at all times and in all material  respects  comply with,
and will cause each  Subsidiary  to comply with,  all  applicable  provisions of
laws, rules, regulations,  licenses,  permits,  approvals and orders and observe
all requirements of federal, state, local and other governmental authorities.

     The Borrower will satisfy,  or cause to be satisfied,  for the Borrower and
each  Subsidiary,  the minimum  annual funding  standard,  within the meaning of
ERISA,  for any employee  benefit plan established or maintained by the Borrower
or such  Subsidiary  which is subject to ERISA and neither the  Borrower nor any
Subsidiary  will  permit any tax or penalty to be  incurred by it as a result of
any failure to satisfy any such minimum  funding  requirement  or as a result of
any violation of the  provisions  of Section 4975 of the Code or any  regulation
issued thereunder.

     Section 5.05. Insurance.  The Borrower will at all times maintain, and will
cause each Subsidiary to maintain, casualty, liability and business interruption
insurance with financially sound and reputable insurers satisfactory to the Bank
in such amounts and to the extent customary for entities of like size in similar
businesses,  all in  accordance  with  the  provisions  of this  Agreement,  the
Borrower Security Agreement and the Subsidiary  Security  Agreements.  Each such
insurance policy shall contain a provision  requiring at least thirty (30) days'
written notice to the Bank prior to the  cancellation  or  modification  of each
such policy.  Certificates  relating to such insurance shall be delivered to the
Bank on the  Closing  Date and  thereafter  upon  demand by the  Bank,  it being
understood  by the  parties  hereto  that no such  certificates  for the Foreign
Subsidiaries  shall be delivered  to the Bank unless and until  requested by the
Bank.



                                       26


     Section 5.06.  Accounts and Reports.  The Borrower will furnish or cause to
be furnished to the Bank, the following reports:

          (a)  Annual  Reports.  As soon as  available  and in any event  within
     ninety (90) days after the end of each fiscal year,  (i)  consolidated  and
     comparative audited financial statements of the Borrower, together with all
     notes thereto,  prepared in reasonable  detail and in accordance  with GAAP
     consistently applied, such consolidated  statements to be duly certified by
     a certified,  independent  public  accounting firm selected by the Borrower
     and acceptable to the Bank ("CPA"),  which  statements shall be accompanied
     by (A) an  unqualified  opinion  thereon  by the CPA,  and (B) a  statement
     executed by the  Borrower's  president or treasurer that to the best of his
     or her knowledge,  following  diligent inquiry,  he or she does not know of
     any  condition or event which  constitutes  an Event of Default  under this
     Agreement  or  which,  after  notice,  or  lapse  of  time or  both,  would
     constitute such an Event of Default,  or a statement  specifying the nature
     and period of  existence of any such  condition  or event,  all in form and
     substance  acceptable to the Bank;  and (ii)  unaudited  consolidating  and
     comparative  balance sheet and income statement  prepared on a year-to-date
     basis  in  reasonable  detail  and in  accordance  with  GAAP  consistently
     applied, and in form similar to Schedule 5.06 attached hereto.

          (b) Quarterly Reports.  As soon as available,  and in any event within
     forty-five (45) days after the end of each quarterly  accounting  period in
     each fiscal year during the term of this Agreement,  (i)  consolidated  and
     comparative  unaudited  financial  statements  of the Borrower  prepared in
     reasonable  detail  and  in  accordance  with  GAAP  consistently  applied,
     certified by the president or treasurer of the Borrower,  which  statements
     shall  contain  balance  sheets  as of the end of such  accounting  period,
     statements of income and cash flow for such accounting  period, all in form
     and substance  satisfactory  to the Bank; and (ii) unaudited  consolidating
     and  comparative   balance  sheet  and  income  statement   prepared  on  a
     year-to-date  basis  in  reasonable  detail  and in  accordance  with  GAAP
     consistently applied, and in form similar to Schedule 5.06 attached hereto.

          (c) Compliance  Certificates.  With the annual and quarterly financial
     statements  furnished  pursuant  to  subsections  (a)  and (b)  hereof,  an
     officer's  certificate  substantially  in the form of Exhibit J hereto (the
     "Compliance  Certificate"),   and  such  other  reports  as  the  Bank  may
     reasonably request.

          (d)  Projections.  At least thirty (30) days prior to each fiscal year
     end,  financial  projections  for the  Borrower  for the next  fiscal  year
     prepared by month in the form previously provided to the Bank.

          (e)  Auditor's  Management  Letter.  Promptly  after  receipt  by  the
     Borrower, copies of the management letter provided by the CPA.

          (f) Public Information.  As soon as they become available,  but in any
     event,  within fifteen (15) days after the issuance  thereof,  the Borrower


                                       27


     shall furnish to the Bank copies of such other financial statements,  proxy
     material   and  reports  as  it  shall  send  or  make   available  to  its
     stockholders,  and promptly upon the filing thereof,  copies of all reports
     and  materials  which  the  Borrower  or  any  Subsidiary  files  with  any
     governmental   commission   (including,   without  limitation,   the  SEC),
     department or agency or with any domestic or foreign stock exchange or with
     the NASDAQ,  including without  limitation,  copies of (i) any registration
     statements,  prospectuses and any amendments and supplements  thereto,  and
     any regular and periodic reports (including, without limitation, reports on
     Form 10-K,  Form 10-Q and Form 8-K) filed by  Borrower  with the SEC or any
     domestic or foreign stock exchange or with the NASDAQ, and (ii) any letters
     of comment or correspondence with respect to filings or
     compliance matters sent to the Borrower by any such governmental commission
     (including without limitation,  the SEC),  department or agency or any such
     domestic or foreign stock exchange or the NASDAQ.

          (g) Accounting  Principles.  Reports  furnished to the Bank under this
     Agreement shall be prepared in accordance with GAAP  consistently  applied,
     except that unaudited  statements  need not contain notes thereto and shall
     be subject to normal year end  adjustments.  Compliance  with the covenants
     set forth in this  Agreement  will be determined  in  accordance  with GAAP
     consistently  applied.  In the event that any subsequent  report shall have
     been prepared in accordance with accounting principles different than those
     used in the Base  Financial  Statements,  the Borrower  shall so inform the
     Bank of such change in accounting  principles and shall provide to the Bank
     such  subsequent  reports  and  such  supplemental   reconciling  financial
     information  as may be required to  ascertain  performance  by the Borrower
     with the covenants contained in this Agreement.

     Section 5.07.  Information and Inspection.  The Borrower will furnish,  and
will cause each Subsidiary to furnish,  the Bank from time to time promptly upon
the Bank's request,  full  information  pertinent to any covenant,  provision or
condition  hereof  or to any  matter  in  connection  with the  business  of the
Borrower or such Subsidiary and, at all reasonable  times during normal business
hours and as often as the Bank shall reasonably  request,  permit any authorized
representative  designated by the Bank to visit and inspect any of properties of
the Borrower  and its  Subsidiaries,  including  their books and records (and to
make extracts  therefrom),  and to discuss their affairs,  finances and accounts
with its officers. The Borrower will, in addition,  promptly furnish to the Bank
such  financial  information  as the  Bank  shall  reasonably  request.  Without
limiting the generality of the foregoing,  the Bank shall be entitled to conduct
as many  examinations of the books and records of the Borrower or any Subsidiary
as the Bank in its sole discretion deems necessary and the Borrower shall pay on
demand the Bank's out-of-pocket expenses and field audits and appraisal fees.

     Section 5.08. Additional Advice. The Borrower will promptly advise the Bank
of any change which constitutes or, after notice or lapse of time or both, would
constitute an Event of Default as defined in Article VI of this Agreement,  or a
default in the performance by the Borrower or any Subsidiary  under any covenant
or agreement contained in any other agreement to which it is a party or by which
it is bound which has not been cured within the applicable grace period, if any.
The  Borrower  will also  promptly  give notice to the Bank of (a) each  waiver,
consent or amendment granted or made with respect to borrowed money in excess of
$25,000,  and (b) any dispute or default  under or change in a material  term of
any collection agreement during the prior fiscal year.

     Section 5.09.  Payment of Expenses.  The Borrower will bear all  reasonable
out-of-pocket  fees and expenses of the Bank in connection with the negotiation,
preparation,   execution,  amendment,  administration  or  enforcement  of  this
Agreement,  the other Credit Documents and the transactions  contemplated hereby
(whether  or not  the  Credit  hereunder  is  consummated)  and the  making  and
collection of the Credit hereunder,  including without limitation,  the fees and
disbursements  of Special Counsel for the Bank,  costs of appraisals,  recording
fees, and filing fees.  Such fees and  disbursements  of Special Counsel for the
Bank  payable  by the  Borrower  in  connection  with the  initial  negotiation,


                                       28


preparation and execution of this Agreement and the other Credit Documents shall
not exceed $50,000.

     Section 5.10.  Limitation on Indebtedness.  Except as otherwise provided in
Section 5.11 below, the Borrower will not, and will not permit any Subsidiary to
create,  incur,  assume, or become, be or remain liable in any manner in respect
of,  or  allow to  exist,  any  indebtedness  (which  term  shall  include:  all
indebtedness,  obligations and liabilities,  which in accordance with GAAP would
be  reflected  on the  balance  sheet of the  Borrower or such  Subsidiary  as a
liability; all indebtedness,  obligations and liabilities (including any letters
of credit  issued by any bank),  whether or not assumed by the  Borrower or such
Subsidiary,  secured by any Lien  existing on property  owned by the Borrower or
such  Subsidiary;  all  indebtedness  in respect of  operating  leases;  and all
amounts  representing  rental payments which, in accordance with GAAP,  would be
classified as a liability on its balance  sheet)(collectively,  "Indebtedness"),
except for:

          (a) the Obligations;

          (b) the Canadian Debt;

          (c) the UK Debt;

          (d) Purchase Money  Indebtedness  and  Capitalized  Lease  Obligations
     (including the approximately  $1,400,000 of Purchase Money Indebtedness and
     Capitalized  Lease  Obligations which is in existence as of the date hereof
     and which is specifically  disclosed in Schedule  5.10(d)  attached hereto)
     which  collectively shall not exceed the aggregate sum of $2,500,000 at any
     one time;

          (e)  Indebtedness  of the  Borrower and the  Subsidiaries  which is in
     existence  as of the date  hereof and which is  specifically  disclosed  in
     Schedule 5.10(e) attached hereto), and which shall not exceed the aggregate
     principal amount of $533,345 at any time on or after the date hereof;

          (f)  Indebtedness  of the  Borrower  and the  Subsidiaries  for taxes,
     assessments,  governmental  charges,  Liens or claims  described in Section
     5.04  hereof to the extent  that  payment  thereof is not  required by such
     Section 5.04;

          (g)  Indebtedness of the Borrower and the  Subsidiaries  comprising of
     trade debt, wages,  employee benefits,  advance payments on sales contracts
     and other Indebtedness incurred in the ordinary course of business; and

          (h)  Indebtedness  in respect of final  judgments  for the  payment of
     money not in excess of $50,000  in the  aggregate  at any time  outstanding
     (excluding sums covered by insurance)  remaining  unsatisfied and in effect
     for any  period of less than  sixty (60) days or in respect of which a stay
     of execution shall have, been obtained  pending an appeal or proceeding for
     review.

     Section 5.11.  Limitation on Liability for Obligations of Others. Except as
otherwise  provided in Section 5.10 above,  the Borrower  will not, and will not


                                       29


allow any Subsidiary to,  assume,  guarantee,  endorse or otherwise be or become
liable, contingently or otherwise, for the obligations of any other corporation,
firm or entity or other person, except for:

          (a) the Guaranty Agreement;

          (b)  the   endorsement  of  negotiable   instruments  for  deposit  or
     collection in the normal course of business;

          (c) the  Guarantee  dated  ___________,  1998 (the "First  Chicago NBD
     Guaranty"),  from the Borrower in favor of First Chicago NBD Bank,  Canada,
     as amended as of August __, 1998,  pursuant to which,  among other  things,
     the Borrower has guaranteed up to $2,000,000 of all of the  obligations and
     liabilities of its subsidiary,  Ground Effects,  Ltd., to First Chicago NBD
     Bank, Canada;  provided,  however,  that (i) the Borrower shall not further
     amend,  restate or  otherwise  alter the First  Chicago NBD Guaranty in any
     manner;  and (ii) the Borrower will not,  directly or indirectly,  make any
     payment pursuant to or with respect to the First Chicago NBD Guaranty;

          (d) the Deed of  Guarantee  dated  January  16,  1998  (the  "National
     Westminster  Bank  Guaranty"),  from the  Borrower  in  favor  of  National
     Westminster Bank PLC, pursuant to which,  among other things,  the Borrower
     has guaranteed up to ,391,780  (British  Pounds) of all of the  obligations
     and liabilities of its subsidiary,  Signal Processors  Limited, to National
     Westminster Bank PLC,  provided,  however,  that (i) the Borrower shall not
     amend, restate or otherwise alter the National Westminster Bank Guaranty in
     any manner;  and (ii) the Borrower will not,  directly or indirectly,  make
     any payment  pursuant to or with respect to the National  Westminster  Bank
     Guaranty; and

          (e) those guarantees of the Borrower,  which are described in Schedule
     5.11 attached hereto,  and which relate solely to certain  equipment leases
     or bonds of the Subsidiaries  described therein. . Section 5.12. Limitation
     on Liens.  The Borrower will not, and will not allow any Subsidiary to, (i)
     create,  incur,  assume or allow to be created,  incurred or assumed, or to
     exist,  any pledge of, or any Lien of any kind on, any of their  respective
     properties,  assets or capital  stock,  (ii)  subject any of such assets to
     prior  payments  of  any  other   Indebtedness   whether  by  subordination
     agreement,  transfer  of assets or  otherwise,  or (iii) own or  acquire or
     agree to  acquire  any  property  of any  character  subject to or upon any
     mortgage,  conditional  sale agreement or other title retention  agreement,
     provided,  however, that the foregoing  restrictions shall not prohibit the
     Borrower or a Subsidiary from:

          (a) creating or allowing to exist any Liens which secure  Indebtedness
     permitted under
         Section 5.10;

          (b)  creating  or  allowing to exist any Liens in favor of the Bank or
     otherwise permitted under the Security Documents;

          (c)  allowing  to exist  Liens for  taxes,  assessments,  governmental
     charges  and levies  for claims  described  in Section  5.04  hereof to the


                                       30


     extent that payment thereof is not then required by such Section;

          (d)  allowing to exist Liens in respect of  judgments  or awards which
     have been in force for less than the applicable  appeal period or less than
     sixty (60) days,  whichever  is sooner,  so long as execution is not levied
     thereunder,  or in respect of which the Borrower or such  Subsidiary at the
     time  shall in good faith be  prosecuting  an appeal,  or  proceedings  for
     review are pending and in respect of which a stay of  execution  shall have
     been obtained pending such appeal or review; and

          (e)  creating  or all  owing  to exist  deposits  or  pledges  made in
     connection  with,  or  to  secure  payment  of,   workmen's   compensation,
     unemployment insurance or similar programs;  Liens, charges or encumbrances
     imposed by law, such as carriers',  warehousemen's and mechanics' Liens and
     other  Liens  arising  in the  ordinary  course of  business  which do not,
     individually  or in the  aggregate,  materially  detract  from the value or
     limit the use of any property subject thereto;  landlords' Liens in respect
     of rent not in default or Liens securing the performance of bids,  tenders,
     contracts  (other  than for the  repayment  of borrowed  money),  statutory
     obligations and surety bonds.

     Section 5.13. Sale of Assets. The Borrower will not, and will not allow any
of its  Subsidiaries  to,  sell or transfer to any third party any of its assets
(including,  without  limitation,  accounts  receivable  whether with or without
recourse);  provided,  however,  (a) the Borrower or any of its Subsidiaries may
make such sales or transfers to the Borrower or any of its  Subsidiaries  (other
than its Foreign Subsidiaries);  and (b) the Borrower or any of its Subsidiaries
may make sales or  transfers  which are (i)  permitted by Section 5.16 hereof or
(ii) in the ordinary course of business.

     Section 5.14.  Loans and Investments in Securities.  The Borrower will not,
and will not permit any Subsidiary to, without the prior written  consent of the
Bank,  purchase or otherwise acquire or retain any stock,  assets or obligations
of,  or make any  loans or  advances  to,  or  investments  in any  corporation,
partnership or other entity or person, other than:

          (a)  obligations  of the  United  States  of  America,  or any  agency
     thereof,  maturing  not  more  than  one (1)  year  from  the date of issue
     thereof; or

          (b)  certificates  of deposit or other  obligations  maturing not more
     than one (1) year from the date of issue thereof issued by the Bank; or

          (c) Permitted Acquisitions or Permitted Payments; or

          (d) loans by the Borrower to the Subsidiaries;

provided,  however,  notwithstanding any provision contained herein or in any of
the other Credit  Documents  to the  contrary,  the Borrower  will not, and will
cause its  Subsidiaries  not to,  make any loans or advances  to, or  additional
investments in, any Foreign Subsidiary for any purpose.



                                       31


     Section 5.15.  Transactions With Affiliated Persons. The Borrower will not,
and will not permit any  Subsidiary  to,  enter  into any  transaction  with any
Affiliate,  except on terms no less favorable to the Borrower or such Subsidiary
than  would  be  available  in a  bona  fide  arm's  length  transaction  with a
non-affiliated  person or  entity;  provided  that (i) the  Borrower  shall have
obtained the Bank's prior written  consent to any such  transaction or series of
related  transactions  involving  an  amount  of in  excess  of  $25,000  in the
aggregate  and (ii) the Borrower may issue stock options and warrants (and stock
upon the  exercise  thereof)  at less than fair  market  value to its  officers,
employees,  directors  and  shareholders.  All such  existing  stock options and
warrants  as of the date  hereof  are as set  forth in  Schedule  5.15  attached
hereto.  "Affiliate"  means: any officer,  director or shareholder who owns five
percent  (5%) or more of any class of  securities  of the  Borrower;  any entity
where the Borrower owns directly or indirectly  five percent (5%) or more of any
class of  securities  or  interest  issued by such  entity;  or any entity  that
controls, is controlled by or under common control with, any Borrower.

     Section 5.16. Consolidation,  Merger or  Disposition/Acquisition of Assets.
The Borrower will not, and will not allow any  Subsidiary  to, without the prior
written  consent of the Bank,  consolidate  with or merge  into or with  another
firm, person or corporation, directly or indirectly, issue, sell, assign, pledge
or  otherwise  encumber or dispose of any shares of its  capital  stock or sell,
lease  or  otherwise  dispose  of  (other  than in the  ordinary  course  of its
business) all or any material portion of their  respective  properties or assets
to any firm,  person or  corporation,  or acquire  any  material  portion of the
properties or assets of any other firm, person or corporation, whether in one or
a series of related transactions, except that:

          (a) any Subsidiary may merge into or consolidate  with the Borrower or
     another Subsidiary (provided that the Borrower or a Subsidiary shall be the
     surviving corporation); and

          (b) the Borrower and its Subsidiaries may sell or otherwise dispose of
     any property which has become uneconomic,  obsolete or worn out if disposed
     of in the ordinary course of business; and

          (c) so long as no Event of Default  (or event which with  notice,  the
     passage of time or both would  become an Event of Default) has occurred and
     is  continuing,  the  Borrower  and its  Subsidiaries  may  make  Permitted
     Acquisitions and Permitted Payments.

     Section  5.17.  Changes in Corporate  Business.  The Borrower will not, and
will not permit any Subsidiary to, materially alter the nature of its business.

     Section 5.18. New  Subsidiaries.  The Borrower shall, at the expense of the
Borrower and its Subsidiaries, cause each new Subsidiary (other than new Foreign
Subsidiaries)  of the Borrower  created or acquired  after the date  hereof,  to
execute and deliver to the Bank,  within  thirty (30) days after the creation or
acquisition of such new Subsidiary,  the following agreements and documents, all
in form and substance reasonably satisfactory to the Bank:

          (a) a Supplement to Guaranty Agreement in the form attached as Exhibit
     A to the Guaranty  Agreement,  pursuant to which, such new Subsidiary shall


                                       32


     become a party to the Guaranty Agreement;

          (b) a  Subsidiary  Security  Agreement,  pursuant  to which,  such new
     Subsidiary  shall grant to the Bank a first priority  security  interest in
     all of its assets;

          (c)  any and  all  UCC  financing  statements  which  the  Bank  deems
     necessary and  appropriate in order to perfect its first priority  security
     interests in all of the assets of such new Subsidiary; and

          (d)  such   other   agreements,   documents,   financing   statements,
     instruments,  opinions  and  certificates  and  completion  of  such  other
     matters, as the Bank may reasonably deem necessary or appropriate.

     The  Borrower,  or the  Subsidiary,  whichever is  applicable  (hereinafter
referred as the "Corporate  Parent"),  which owns or otherwise  acquires Capital
Stock in any new Subsidiary  (including any new Foreign  Subsidiary)  created or
acquired  after the date hereof,  will  execute and deliver to the Bank,  within
thirty (30) days after the creation or acquisition of such new Subsidiary, (i) a
pledge  agreement  (in form and  substance  reasonably  acceptable to the Bank),
pursuant  to which,  such  Corporate  Parent  shall grant in favor of the Bank a
first  priority  security  interest  with respect to all Capital  Stock owned or
otherwise acquired by the Corporate Parent in such new Subsidiary; and (ii) such
financing statements,  documents,  instruments and certificates, as the Bank may
reasonably  request in order to perfect its  security  interest in such  Capital
Stock.

     Except as otherwise  provided in Sections 5.10 and 5.11 above, the Borrower
will not,  and will not  permit  any  Subsidiary  to incur any  Indebtedness  in
connection with the creation or acquisition of any such new Subsidiary.

     Section 5.19  Minority  Stockholders.  To the extent that the Borrower does
not  directly or  indirectly  own all of the  outstanding  Capital  Stock in any
Subsidiary, the Borrower shall use its best efforts to cause all Persons who own
any Capital Stock in such Subsidiary promptly to execute and deliver to the Bank
(a) a pledge  agreement  (in form and  substance  reasonably  acceptable  to the
Bank),  providing for a first  priority  security  interest in favor of the Bank
with respect to all Capital Stock owned by such Person in such  Subsidiary;  and
(b) such financing statements,  documents,  instruments and certificates, as the
Bank may  reasonably  request in order to perfect its security  interest in such
Capital Stock.

     Section  5.20.  Restricted  Payments.  The Borrower  will not, and will not
permit any Subsidiary to, directly or indirectly,  declare,  order,  pay or make
any Restricted Payments,  provided, however, that so long as no Event of Default
has occurred and is continuing,

          (a) the  Borrower  may redeem for cash up to  $700,000  (plus  accrued
     dividends) of the  Borrower's  redeemable  preferred  stock as set forth in
     Schedule 5.20 attached hereto;

          (b) the Borrower may acquire,  in exchange for its Capital Stock,  the
     remaining  equity  interests in Subsidiaries  which are not wholly-owned by


                                       33


     the Borrower,  by issuance to the Persons and pay certain  "earn outs",  in
     the amounts,  at the times, and, where so indicated,  upon the satisfaction
     of the earnings targets set forth in Schedule 5.20 attached hereto;

          (c)  the  Borrower   may  declare  and  pay  cash   dividends  to  its
     shareholders in the aggregate amount of up to $150,000 per any fiscal year;
     and

          (d) any Subsidiary may declare and pay cash  dividends,  to the extent
     permitted  under the provisions of the Borrower Stock Pledge  Agreement and
     the Subsidiary Stock Pledge Agreement.

The transactions permitted in clauses (a), (b), (c) and (d) of this Section 5.20
are hereinafter referred to collectively as the "Permitted Payments."

     Section 5.21.  Restriction on Use of Proceeds.  None of the proceeds of the
Credit shall be used by the Borrower to purchase  commodities  except for use in
the ordinary course of the Borrower's business, or for the purpose of purchasing
or carrying,  or  refinancing  any  borrowing the proceeds of which were used to
purchase or carry, any "margin securities" within the meaning of Regulation U of
the Board of Governors of the Federal Reserve System.

     Section 5.22.  Bank Accounts.  The Borrower shall maintain at all times all
of its primary operating and disbursement  accounts with the Bank; provided that
the Bank's services meet the reasonable cash management needs of the Borrower.

     Section  5.23.  Continued  Management  and  Ownership  of Borrower and Each
Subsidiary.  Richard J.  Sullivan  shall  continue  to serve  actively  as chief
executive  officer  of  the  Borrower  and  shall  actively  participate  in the
management of the  Borrower.  At no time after the date hereof will the Borrower
permit  (i) more  than 50% of the  outstanding  shares of  Capital  Stock of the
Borrower to be beneficially  owned (as defined in Rule 13d-3  promulgated  under
the  Securities  Exchange Act of 1934, as amended (the  "Exchange  Act")) by any
"person" or any "group" (as defined in Section 13(d)(3) of the Exchange Act); or
(ii) any change in the  ownership  structure of any  Subsidiary  as set forth in
Schedule  3.02 (other than as a result of Permitted  Acquisitions  and Permitted
Payments).

     Section 5.24. Material  Agreements.  The Borrower will observe and perform,
and will cause each  Subsidiary to observe and perform,  all of its  obligations
under each material  agreement to which it is a party,  except where the failure
so to  observe  would not have a  material  adverse  affect  upon the  business,
assets,  operations,  financial or other condition, or prospects of the Borrower
or such Subsidiary, as the case may be.

     Section 5.25. Maximum Capital  Expenditures.  The Borrower will not permit,
and will cause its  Subsidiaries not to permit,  Capital  Expenditures to exceed
$1,500,000  during any fiscal year  (excluding from this  calculation,  Purchase
Money  Indebtedness  and Capitalized  Lease  Obligations  permitted  pursuant to
Section 5.10(c)) above).

     As used herein,  "Capital  Expenditures"  means, for any given period,  all
internally financed  expenditures of the Borrower and its Subsidiaries for fixed


                                       34


or capital  assets  made or  incurred  during  such  period  which are  properly
chargeable to capital account in accordance with GAAP consistently applied.

     Section  5.26.  Ratio of Total  Liabilities  to  Tangible  Net  Worth.  The
Borrower will not permit,  and will cause its  Subsidiaries  not to permit,  the
ratio  of Total  Liabilities  to  Tangible  Net  Worth at the end of any  fiscal
quarter ending after the date hereof to be greater than 2.0 to 1.0.

     As used herein, "Total Liabilities" means, as of any given date, the sum of
all  liabilities  of the  Borrower  and its  Subsidiaries,  as  determined  on a
consolidated basis, in accordance with GAAP consistently applied;  "Tangible Net
Worth"  means,  as of any  given  date,  the sum of all  tangible  assets of the
Borrower and its Subsidiaries minus the Total Liabilities,  all as determined on
a consolidated basis in accordance with GAAP consistently applied.

     Section 5.27. Ratio of Current Assets to Current Liabilities.  The Borrower
will not permit,  and will cause its  Subsidiaries  not to permit,  the ratio of
Current  Assets to Current  Liabilities  at the end of any fiscal quarter ending
after the date hereof to be less than 1.25 to 1.00.

     As used herein,  "Current  Assets" means,  as of any given date, the sum of
all cash and cash  equivalents  plus  inventory,  prepaid  expenses and accounts
receivables  of the  Borrower  and  its  Subsidiaries,  all as  determined  on a
consolidated  basis in  accordance  with  GAAP  consistently  applied;  "Current
Liabilities"  means,  as of any given date, all current  liabilities  (including
current  maturities  on  long-term  debt and all amounts  outstanding  under the
Credit) of the Borrower and its  Subsidiaries,  as determined on a  consolidated
basis in accordance with GAAP consistently applied.

     Section  5.28.  Ratio of Cash Flow to Debt  Service.  The Borrower will not
permit,  and will cause its Subsidiaries not to permit, the ratio of Cashflow to
Debt Service at the end of any fiscal quarter ending after the date hereof to be
less than 2.5 to 1.0;  provided,  however,  that for the fiscal quarter June 30,
1998, such ratio will not be less than 2.0 to 1.0.

     As used herein,  "Cashflow"  means,  for any given period,  the  Cumulative
Amount  of (a) the net  income of the  Borrower  and its  Subsidiaries  for such
period (excluding all extraordinary income or losses), plus (b) the depreciation
and amortization  expenses of the Borrower and its Subsidiaries for such period,
all as determined on a consolidated  basis in accordance with GAAP  consistently
applied;  "Cumulative  Amount" means,  for any item, the total aggregate  amount
thereof for the last four  quarters on a rolling  basis  through the last day of
the fiscal quarter in question;  "Debt Service" means, for any given period, the
Cumulative  Amount of (a) current  maturities  of long term debt of the Borrower
and its Subsidiaries (including Capital Lease Obligations), plus (b) all capital
expenditures  (both internally and externally  financed) of the Borrower and its
Subsidiaries,  all as determined on a consolidated basis in accordance with GAAP
consistently applied.



                                       35


     Section  5.29.  Ratio of Net Profit  Before Taxes to Revenue.  The Borrower
will not permit, and will cause its Subsidiaries not to permit, the ratio of Net
Profit Before Taxes to Revenue at the end of any fiscal quarter ending after the
date hereof,  and  expressed as a  percentage,  to be less than 3.0%;  provided,
however,  that for the fiscal  quarters  ending June 30, 1998 and  September 30,
1998, respectively, such percentage will not be less than 2.7%.

     As used herein,  "Net Profit Before Taxes" means, for any given period, the
pre-tax  income  of the  Borrower  and  its  Subsidiaries  for  such  period  as
determined  in  accordance  with  GAAP,   consistently  applied  (excluding  any
extraordinary income or losses);  "Revenue" means, for any given period, the net
sales of the  Borrower and its  Subsidiaries  for such period as  determined  in
accordance with GAAP, consistently applied.


     Section 5.30.  Year 2000.  The Borrower  will take all action  necessary to
assure  that  its  and  each  Subsidiary's   computer  based  systems  are  able
effectively to process data,  including dates, on and after January 1, 2000. The
Borrower  will  promptly  notify the Bank in  writing  of any Year 2000  problem
arising in any such system and,  at the  request of the Bank,  will  provide the
Bank with assurance reasonably acceptable to the Bank of the Borrower's and each
Subsidiary's Year 2000 capability.

ARTICLE VI.  EVENTS OF DEFAULT.

     If,  while any part of the  principal  of or interest on the Notes  remains
unpaid  or while  any part of the  Credit  shall  be in  effect,  any one of the
following "Events of Default" shall occur:

          (a) the failure of the Borrower or any Subsidiary to pay any amount of
     principal,  interest  or other  sum when due to the Bank  under  any of the
     Credit Documents;

          (b) the Borrower or any  Subsidiary  shall (i) apply for or consent to
     the  appointment of a receiver,  trustee or liquidator of it or of all or a
     substantial  part of its assets;  (ii) admit in writing of its inability to
     pay its  debts as they  mature;  (iii)  make a general  assignment  for the
     benefit of creditors; (iv) be adjudicated a bankrupt or insolvent; (v) file
     a voluntary  petition  in  bankruptcy  or a petition  or an answer  seeking
     reorganization  or an  arrangement  with creditors to take advantage of any
     insolvency law; (vi) file any answer admitting the material  allegations of
     a petition filed against it in any bankruptcy, reorganization or insolvency
     proceeding or fail to dismiss such  petition  within thirty (30) days after
     the filing thereof;  or (vii) take any corporate  action for the purpose of
     effecting any of the foregoing;

          (c) an  order,  judgment  or  decree  shall be  entered,  without  the
     application,  approval or consent of the Borrower or any  Subsidiary by any
     court   of   competent   jurisdiction,   approving   a   petition   seeking
     reorganization or liquidation of the Borrower or a Subsidiary or appointing
     a receiver, trustee or liquidator of the Borrower or a Subsidiary or of all
     or a substantial part of its assets;



                                       36


          (d)  any  representation  or  warranty  made  by the  Borrower  or the
     Subsidiaries  hereunder  or  under  any  other  Credit  Document  or in any
     certificate,  document or instrument  furnished  pursuant hereto or thereto
     shall prove to have been false or incorrect  in any  material  respect when
     made;

          (e) the  failure  of the  Borrower  or any  Subsidiary  to  punctually
     perform,  observe,  comply  with or  satisfy  any  covenant,  agreement  or
     condition  contained in this Agreement or any of the other Credit Documents
     (other than those covenants, agreements or conditions referred to elsewhere
     in this Article VI) and such failure  continues for a period of ten (10) or
     more days;

          (f) the  occurrence  of any of the  following:  (i) any failure of the
     Borrower  punctually  to  perform,  observe,  comply  with or  satisfy  the
     provisions  of Section  5.05 through  5.07  (inclusive),  5.10 through 5.20
     (inclusive),  and 5.23 through 5.29 (inclusive) of this Agreement;  or (ii)
     any  failure  with  respect  to  any  requirement  of the  Borrower  or any
     Subsidiary  to give  notice to the Bank as  provided  in any of the  Credit
     Documents;

          (g) any failure of the Borrower or any of its  Subsidiaries to perform
     any  covenant or agreement  contained  in any other  agreement to which the
     Borrower or such  Subsidiary,  whichever is applicable,  is a party,  or by
     which the Borrower or such  Subsidiary,  whichever is applicable,  is bound
     involving a liability or  obligation  of the  Borrower or such  Subsidiary,
     whichever is applicable, in excess of $100,000, which shall not be remedied
     within  the  period of time (if any)  within  which  such  other  agreement
     permits  such  default to be remedied  without the consent or waiver of the
     other party  thereto,  unless such default is waived or excused as a matter
     of law;

          (h)  the  termination,   revocation  or  curtailment  by  any  of  the
     Subsidiaries  of  the  Guaranty  Agreement  (or  any  provision   contained
     therein);

          (i) any of the  Security  Documents  shall,  at any time  after  their
     execution  and  delivery for any reason,  cease:  (i) to create a valid and
     perfected first priority  security interest in and to all of the collateral
     pledged or granted thereunder; or (ii) to be in full force and effect or be
     declared null and void;

          (j) a material  portion of the  property of the Borrower or any of its
     Subsidiaries  is damaged by fire or other  casualty,  or otherwise  lost or
     stolen,  the restoration or replacement cost of which property exceeds,  in
     the aggregate,  the amount of insurance proceeds readily available for such
     restoration  or  replacement,  and such loss would have a material  adverse
     effect upon the Borrower and its Subsidiaries;

          (k) the loss,  suspension or  revocation of any material  governmental
     license  required or  necessary  in  connection  with the  operation of the
     business of the Borrower or any of its Subsidiaries;

          (l) a judgment or judgments  for the payment of money in excess of the
     sum of  $50,000  in the  aggregate  (not  covered  by  insurance)  shall be
     rendered  against  the  Borrower  or any  Subsidiary  and such  judgment or


                                       37


     judgments  shall remain  unsatisfied  and in effect for any period of sixty
     (60) days without a stay of execution;

          (m)  there  shall  occur  any  material  adverse  change  in  the  (i)
     consolidated  financial  condition of the  Borrower;  or (ii) the financial
     condition of any Subsidiary; or

          (n) Any  default  shall exist and  remains  unwaived  or uncured  with
     respect to any of the Canadian  Debt or the UK Debt if, as a result of such
     default,  any holder of all or any portion of the  Canadian  Debt or the UK
     Debt,  is entitled to cause all or any portion of the Canadian  Debt or the
     UK Debt to become due prior to its stated date of maturity;

then and in every such event, while such event shall be continuing, the Bank may
(i) terminate the Credit with respect to further advances, whereupon no advances
may be made  or L/Cs  issued  hereunder,  and/or  (ii)  declare  the  Note to be
forthwith due and payable,  whereupon the Notes shall  forthwith  become due and
payable without presentment,  demand, protest or further notice of any kind, all
of which  are  expressly  waived  by the  Borrower,  and the  right to borrow or
request the issuance of L/Cs hereunder shall terminate.

ARTICLE VII.  MISCELLANEOUS

     Section 7.01. Term of Agreement.  This Agreement  shall terminate  whenever
both of the following  conditions  shall have been met: (i) all principal of and
interest on the Notes and all other amounts due and payable under this Agreement
have  been  paid and  discharged  in full and (ii) the  Borrower  shall  have no
further right to borrow under this Agreement.

     Section 7.02. Notices.  Except as otherwise  specifically  provided in this
Agreement,  all notices and other  communications  hereunder shall be in writing
and  shall be  delivered  in  person,  mailed  by United  States  registered  or
certified  first class mail,  postage  prepaid,  sent by overnight  courier,  or
telexed, telegraphed, telecopied or telefaxed to the parties hereto addressed as
follows:

To the Bank:      State Street Bank and Trust Company
                  225 Franklin Street
                  Boston, Massachusetts 02101
                  Attention: R. Scott Haskell, Vice President
                  Telecopier Number:  (617) 664-6527

With copies to:   Peabody & Arnold LLP
                  50 Rowes Wharf
                  Boston, Massachusetts 02110
                  Attention: Anil Khosla, Esq.
                  Telecopier Number:  (617) 951-2125

To the Borrower:  Applied Cellular Technology, Inc.
                  400 Royal Palm Way, Suite 410
                  Palm Beach, Florida  33480
                  Attention: Richard J. Sullivan, Chief Executive Officer
                  Telecopier Number:  (561) 366-0002



                                       38


                  Jerome C. Artigliere
                  President, ACT Financial Corporation
                  10 Kady Lane
                  Kensington, NH  03833
                  Telecopier Number:  (603) 778-8981

With copies to:   Bryan Cave LLP
                  One Metropolitan Square
                  211 N. Broadway
                  St. Louis, Missouri 63102
                  Attention:  Llewellyn Sale, Esq.
                  Telecopier Number: (314) 259-2020

     Any such  notice or demand  shall be deemed to have been duly given or made
and to have become effective (a) if delivered by hand or overnight  courier,  or
sent by  telegraph,  telecopy,  facsimile  or telex,  at the time of the receipt
thereof or the  sending of such  telegraph,  telecopy,  facsimile  or telex,  if
during normal business hours on a Business Day, and (b) if sent by registered or
certified first-class mail, postage prepaid, on the third Business Day following
the mailing thereof.

     Section  7.03.  No  Waiver.  No  failure  to  exercise,  and  no  delay  in
exercising,  on the part of the Bank,  any right,  power or privilege  hereunder
shall operate as a waiver thereof;  nor shall any single or partial  exercise of
any right,  power or privilege  hereunder preclude any other or further exercise
thereof or the exercise of any other right,  power or privilege.  The rights and
remedies  herein  provided  are  cumulative  and not  exclusive of any rights or
remedies provided by law.

     Section  7.04.  Construction.  This  Agreement  and the Note  shall each be
deemed  to  be  a  contract  made  under  the  laws  of  The   Commonwealth   of
Massachusetts,  and  shall  be  construed  in  accordance  with  the laws of The
Commonwealth  of  Massachusetts  (excluding  conflicts of law  provisions).  The
descriptive headings of the several Sections hereof are for convenience only and
shall not control or affect the meaning or construction of any of the provisions
hereof.  This Agreement,  together with the Exhibits,  Schedules  hereto and all
documents,  certificates  instruments and agreements  executed  pursuant hereto,
constitutes the entire  agreement and  understanding  between the parties hereto
with respect to the subject  matter  hereof,  supersedes  all prior  agreements,
understandings  or  representations  pertaining  to the subject  matter  hereof,
whether oral or written,  and may not be contradicted by evidence of any alleged
oral agreement.

     Section 7.05. Amendments,  Waivers and Consents; No Assignment.  Compliance
by the Borrower  with any term,  covenant or condition of this  Agreement may be
omitted or waived  (either  generally  or in a  particular  instance  and either
retroactively or prospectively)  only by a consent or consents in writing signed
by the Bank.

     This  Agreement  shall be  binding  upon and  inure to the  benefit  of the
Borrower and the Bank and their respective successors and permitted assigns. The
Bank may sell,  assign or  otherwise  transfer  all or any portion of its right,


                                       39


title and interest in, and its obligations under, this Agreement and the Credit,
or grant  participation  interests in its right,  title and interest  herein and
therein.  The  Borrower  may not assign or  transfer  its rights or  obligations
hereunder.

     Section 7.06.  Closing.  The closing of the Credit shall take place at 9:00
a.m. on the date hereof (the "Closing Date"), at the offices of Peabody & Arnold
LLP, 50 Rowes Wharf,  Boston,  Massachusetts 02110, or such place as the parties
hereto may agree.

     Section 7.07.  Consent to  Jurisdiction.  The Borrower and any Guarantor of
the Borrower's obligations under this Agreement irrevocably consents and submits
to the  non-exclusive  jurisdiction of the Superior Court in The Commonwealth of
Massachusetts  and the United States District Court for the Eastern  District of
Massachusetts in connection with any action,  proceeding or claim arising out of
or relating to this Agreement or other document executed in connection with this
Agreement.  In any  such  litigation,  the  Borrower  and all  guarantors  waive
personal  service and agree that service may be made by certified mail directed,
in the case of the  Borrower,  to the location  specified for notices under this
Agreement and, in the case of any guarantor, to its last known address.

     Section 7.08.  Waiver of Jury Trial. THE BORROWER AND THE BANK HEREBY WAIVE
THEIR  RESPECTIVE  RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION  BASED
UPON OR ARISING OUT OF ANY OF THE CREDIT  DOCUMENTS  OR ANY OF THE  TRANSACTIONS
CONTEMPLATED  THEREIN,  INCLUDING CONTRACT CLAIMS,  TORT CLAIMS,  BREACH OF DUTY
CLAIMS AND ALL OTHER COMMON LAW OR STATUTORY CLAIMS.

     Section 7.09 Indemnity.  The Borrower hereby indemnifies and agrees to hold
harmless  the Bank  (exclusive  of the Bank's  cost of funds and  allocation  of
overhead and salaries), any other financing institutions that participate in the
Credit, and each of their directors,  officers,  agents,  employees and counsel,
from and against any and all losses,  claims,  damages,  liabilities or expenses
imposed  on  or  incurred  by  any  of  them  in  connection  with  the  lending
relationship  reflected in this Agreement  except as a result of any indemnified
party's gross  negligence or willful  misconduct.  This indemnity  shall survive
termination of the Agreement.

     Section  7.10.  Setoff.  Any sums due from the Bank to the Borrower and any
property of the Borrower in the  possession  of the Bank may be held and treated
as collateral security for the payment of the obligations of the Borrower to the
Bank and upon the  occurrence  of any Event of  Default  and while such Event of
Default  is  continuing,  may be  applied  to the  payment  of such  obligations
regardless of the adequacy of other collateral.  Any sums due from any financing
institution  that may  participate  in the Credit or property of the Borrower in
the possession of such  institution  may be held as collateral  security for the
payment of the  obligations  of the Borrower to the Bank as if such  institution
had extended the Credit  directly to the Borrower and, upon the occurrence of an
Event of Default and while such Event of Default is  continuing,  may be applied
to the  payment  of  such  obligations  regardless  of  the  adequacy  of  other
collateral.

     Section 7.11. Reliance on Representations and Actions of the Borrower.  The
Borrower hereby agrees that the Bank may rely upon any representation, warranty,


                                       40


certificate, notice, document or telephone request which purports to be executed
or made or which the Bank in good faith  believes to have been  executed or made
by the  Borrower  or any of its  executive  officers,  and the  Borrower  hereby
further agrees to indemnify and hold harmless the Bank for any action, including
the making of Revolving Credit Advances hereunder, and any loss or expense taken
or  incurred  by the Bank as a result of its good faith  reliance  upon any such
representation, warranty, certificate, notice, document or telephone request.

     Section 7.12. Participation. The Bank may grant participation in the Credit
to other financial institutions.  The Borrower invites any financial institution
which may consider investing or participating in the Credit (each such financing
institution  being referred to in this Section as a "Participant")  to rely upon
all of the representations,  warranties,  covenants and other provisions of this
Agreement,  the Note and the other Credit Document and  agreements,  instruments
and  documents  referred  to  herein  or  contemplated  hereby  in  making  such
investment or  participation  and agrees that its becoming a Participant  in the
Credit  shall  constitute  an  acceptance  of such  offer  and  shall  make  the
Participant a creditor of the Borrower.  Any Participant may exercise the rights
of set-off given to the Bank in this Agreement  with respect to any  outstanding
Indebtedness of the Borrower to such Participant hereunder.

            [THE REMAINDER OF THIS PAGE IS LEFT INTENTIONALLY BLANK]



                                       41


     IN WITNESS WHEREOF, the parties hereto have executed this Agreement
under seal as of the date first above written.

WITNESS:                                APPLIED CELLULAR TECHNOLOGY, INC.



/s/ Scott R. Silverman                      
- --------------------------------        By: /s/ Richard J. Sullivan 
Name:                                       ------------------------------------
                                            Richard J. Sullivan
                                            Chairman and Chief Executive Officer
                                            



WITNESS:                                STATE STREET BANK AND TRUST COMPANY


/s/ Susan Neel Morrison                     
- ---------------------------------       By: /s/ R. Scott Haskell 
Name:                                      ------------------------------------
                                           R. Scott Haskell, Vice President