RENEWAL MASTER LINE OF CREDIT NOTE


$1,000,000.00                                                      July 31, 1996


         For value received,  TDI, INC. (the  "Company")  promises to pay to the
order of KEYBANK NATIONAL ASSOCIATION,  formerly known as Society National Bank,
Indiana,  Elkhart, Indiana (the "Bank"), its successors and assigns, at its main
office,  on the date or dates and in the manner  specified  in Article II of the
Loan   Agreement   (as  defined   below),   the  sum  of  One  Million   Dollars
($1,000,000.00) or such amount which may be advanced by Bank under the terms and
conditions  of the Loan  Agreement as shown on any ledger or other record of the
Bank,  which shall be rebuttably  presumptive  evidence of the principal  amount
owing and unpaid on this Note.

         The Company  promises  to pay to the order of the Bank  interest on the
unpaid  principal  amount  of each  Revolving  Loan  made  pursuant  to the Loan
Agreement from the date of such  Revolving  Loan until such principal  amount is
paid in full at such  interest  rate(s)  and at such times as are  specified  in
Article II of the Loan Agreement.

         This Note  replaces a Master  Line of Credit  Note in the amount of One
Million  Dollars  ($1,000,000.00)  dated  May 8,  1996,  but does  not  serve as
payment, discharge or release of said Master Line of Credit Note.

         This Note is the  Master  Line of Credit  Note  referred  to in, and is
entitled to the  benefits  of, the Line of Credit  Agreement  by and between the
Bank and the Company dated July 26, 1995,  as amended in May 8, 1996,  and again
on July 31,  1996,  and as the same may be  hereafter  amended from time to time
(the "Loan  Agreement").  This Note may be declared forthwith due and payable in
the manner and with the effect  provided in the Loan  Agreement,  which contains
provisions  for  acceleration  of the maturity  hereof upon the happening of any
Event of Default and also for prepayment on account of principal hereof prior to
the maturity hereof upon the terms and conditions  therein specified and for the
payment of all  expenses  incurred by the Bank,  including  reasonable  fees and
disbursements of counsel, relating to collection or enforcement hereunder.

         Each  defined  term used in this Note shall have the  meaning  ascribed
thereto in Section 1.2 of the Loan Agreement.

         This Note is secured by a Security  Agreement  of May 19,  1995 and any
and all  security  agreements  ratified  pursuant to the Loan  Agreement,  Other
Collateral  Documents,  and by any and all collateral securing any obligation of
Company to Bank.

         As security for the payment of the  obligations  evidenced by this Note
and the other  liabilities  and  obligations  of  Company to Bank,  however  and
whenever created or acquired, direct or contingent,  which now or after the date
of this Note may exist,  in addition  to all other  security  for such  payment,
Company grants to Bank a continuing lien and security






interest in all Company's personal  property,  or Company's interest in personal
property,  which  now is or which  may  after  the  date of this  Note be in the
possession  of Bank,  and a continuing  lien and security  interest in Company's
interest in all amounts on deposit at Bank and upon the  occurrence  of an Event
of  Default  (as that is  defined  in the Loan  Agreement),  Bank may apply such
property, interests, and/or amounts upon any and all liabilities and obligations
of Company to Bank, without prior notice to Company.

         The holder of this Note, in its sole  discretion,  may renew this Note,
accept  a  renewal  note or  notes,  extend  the  time  for the  payment  of the
indebtedness  evidenced by this Note, reduce the payments under this Note, or do
any combination of such actions on any number of occasions;  provided,  however,
any such action  shall not release  the Company or any  endorser,  accommodation
party or guarantor from any liability on the obligation  evidenced by this Note.
Company and any  endorser,  accommodation  party or  guarantor of this Note each
waive presentment for payment,  protest, notice of protest, notice of nonpayment
or dishonor of this Note and diligence in the  collection of this Note; and each
of them  consents to any actions by Bank or any holder of this Note as set forth
in this paragraph.

         By signing or guaranteeing this Note, each and every guarantor, surety,
endorser,  and accommodation party of the obligations  contained herein shall be
deemed to and shall have irrevocably  waived and relinquished (i) the benefit of
any and all defenses to enforcement of this Note,  any  counterclaim,  offset or
claim in recoupment,  based upon contract, arising at equity, or under any state
or federal law regarding suretyship or guaranty generally; or (ii) any discharge
provided in Indiana Code ss. 26-1-3.1-605,  or other state or federal statute of
similar import.  Consistent with this waiver, and not by way of limitation,  the
person or persons  entitled  to enforce  this  instrument  may,  at any time and
without notice to any guarantor,  surety, endorser or accommodation party of the
obligations  contained in this Note,  (i) extend the maturity date of this Note;
(ii) adjust any and all terms of this Note, even if such  adjustment  materially
alters the  obligation;  (iii) take any  action  (or not take any  action)  with
respect to any collateral for this Note, including without limitation, releasing
or  diminishing  (intentionally  or  otherwise)  the  extent  or  value  of such
collateral.

         No failure by Bank to exercise any right under this Note, including any
rights  resulting  from an Event of Default (as that term is defined in the Loan
Agreement),  shall operate as a waiver or otherwise prevent Bank from exercising
any of its rights under this Note at any other time,  including  the exercise by
Bank of any rights at any time during the  continuance  of such Event of Default
or on the occurrence of a subsequent Event of Default.

         Company agrees that Bank shall be entitled to rely on any written, oral
or telephonic  communication  requesting a draw or advance under this Note which
may be  received  by Bank from any person  reasonably  believed by Bank to be an
authorized  representative of Company. Each draw or advance made under this Note
will be evidenced  by a written  record made by Bank  indicating  the amount and
date of such  transaction.  Such  records of Bank shall be deemed by Company and
Bank to be sufficient evidence of credit extended under this Note.

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         This Note and any extensions or renewals of this Note relates to and is
subject to all of the terms,  conditions,  and  provisions of the Loan Agreement
and any  extensions,  renewals,  modifications  or  amendments of or to the Loan
Agreement;  and this Note and any extensions or renewals of this Note is related
to any mortgage, pledge, financing statement,  guaranty,  security agreement and
other document required under or related to the Loan Agreement.

         This  Note is made and  shall be  governed  by the laws of the state of
Indiana and the  Company  consents to the  jurisdiction  of any local,  state or
federal  court  located  within  Elkhart  County,  Indiana  (or in the case of a
federal court, the jurisdiction of which includes Elkhart County, Indiana).

         IN WITNESS  WHEREOF,  the Company has hereunto set its hand by its duly
authorized officers on the day and the year first above mentioned.

                                          "COMPANY":
                                          TDI, Inc.



                                      By: /s/ Richard B. DeBoer
                                          --------------------------------------
                                          Richard B. DeBoer, CFO







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