Document:

<PAGE>
                                                                    EXHIBIT 4(a)

                EIGHTH AMENDMENT TO CREDIT AND LOAN AGREEMENT

      THIS EIGHTH AMENDMENT (the "Amendment"), dated and effective this 12 day
of July, 2002, is made to that certain Credit and Loan Agreement, dated as of
August 7, 1998, as the same was amended by that certain First Amendment to
Credit Agreement and Loan Agreement, dated as of October 6, 1998, that certain
Second Amendment to Credit and Loan Agreement, dated as of February 9, 1999,
that certain Third Amendment to Credit and Loan Agreement, dated as of June 23,
2000, that certain Fourth Amendment to Credit and Loan Agreement, dated as of
August 24, 2000, that certain Fifth Amendment to Credit and Loan Agreement dated
as of July 13, 2001, that certain Sixth Amendment to Credit and Loan Agreement
dated as of December 27, 2001 (the "Sixth Amendment") and that certain Seventh
Amendment to Loan and Credit Agreement dated as of January 18, 2002 (the
"Seventh Amendment")(collectively, the "Loan Agreement"), by and among
TRANSMATION, INC., an Ohio corporation (the "Borrower"), THE LENDERS PARTY
THERETO FROM TIME TO TIME (the "Lenders") and KEYBANK NATIONAL ASSOCIATION, a
national banking association, as Agent (in such capacity, together with its
successors in such capacity, the "Agent").

                                    RECITALS:

      WHEREAS, the Borrower has requested that certain changes and modifications
be made to the Loan Agreement and has requested that the Lenders waive certain
loan covenant defaults as of March 31, 2002 and July 12, 2002, and the Lenders
are agreeable to making the same in accordance with the terms and conditions set
forth herein, commencing as of the effective date first written above.

      NOW, THEREFORE, in consideration of the promises and of the mutual
covenants herein contained, the receipt and sufficiency of which are hereby
mutually acknowledged, and intending to be legally bound hereby, the parties
hereto agree as follows:

      1.    Definitions; References. All capitalized terms used and not
otherwise defined in this Amendment shall have the meanings ascribed to such
terms in the Loan Agreement. All Section, Subsection and Paragraph references
shall be to Sections, Subsections and Paragraphs of the Loan Agreement. Except
as specifically modified hereby, the Loan Agreement shall remain in full force
and effect.

      2.    Revolving Credit Loans.

      (A)   Paragraph (iii) of Subsection (a) of Section 2.01 and all previous
amendments thereto of the Loan Agreement is amended to read in its entirety as
follows:

            (i)   Notwithstanding anything to the contrary in the foregoing
                  paragraphs (i) and (ii), and subject to downward adjustment
                  pursuant to Paragraph 5 of this Amendment, at no time during
                  the term of this Agreement shall the aggregate amount of the
                  Lenders' Revolving Credit Commitment, or the aggregate of
                  outstanding Revolving Credit Loans plus the aggregate undrawn
                  face amount

                                       1
<PAGE>
                  of all issued and outstanding Letters of Credit exceed
                  $8,400,000.00 (the "Revolving Credit Facility Limit"). The
                  Revolving Credit Maturity Date shall be August 1, 2003. The
                  Borrower will execute and deliver Replacement Revolving Credit
                  Notes as required by Lenders substantially in the form
                  attached as Exhibit A, and shall make aggregate payments for
                  the Revolving Credit Notes to the Agent.

      (B)   Section 2.04 and all previous amendments thereto of the Loan
Agreement is amended to read in its entirety as follows:

            (i)   The interest rate on the Revolving Credit Loans will be equal
                  to the Prime Rate, plus 1%, as adjusted from time to time
                  pursuant hereto. In the event that the Overadvance
                  (hereinafter defined) exceeds the amounts set forth in
                  paragraph 3 below, or exists in whole or in part after
                  December 31, 2002, (in either case an "Unpermitted
                  Overadvance") it shall be an Event of Default. For so long as
                  such Event of Default exists, the interest rate on the
                  Revolving Credit Loans will equal the Prime Rate, as adjusted
                  from time to time pursuant hereto, plus 3%, for the first
                  thirty days of such Unpermitted Overadvance and shall increase
                  by 1% for each and every additional thirty day period that
                  such Unpermitted Overadvance exists.

      3.    Revolving Credit Loan Borrowing Formula ("Borrowing Formula").

      (A)   Paragraph (v) of Subsection (a) of Section 2.01 of the Loan
Agreement is replaced in its entirety with the following:

            (v)(i)Notwithstanding any of the provisions of Subsection (a) of
                  Section 2.01 and any previous amendments thereto, the
                  principal amount outstanding under the Revolving Credit Loans
                  shall, at no time, exceed the sum of (X) eighty (80%) percent
                  of the net amount of Eligible Accounts Receivable (hereafter
                  defined) on the date of determination and (Y) fifty (50%)
                  percent of the net amount of Eligible Inventory (hereafter
                  defined). Notwithstanding, for the period from July 1, 2002 to
                  September 30, 2002, the Lenders will permit an Overadvance of
                  up to $500,000.00. From October 1, 2002 to December 31, 2002
                  the amount of the allowable Overadvance will be reduced to
                  $300,000.00. Beginning January 1, 2003, no Overadvance will be
                  permitted.

            (ii)  $500,000.00 of the Revolving Credit Facility Limit shall be
                  held or "blocked" to be utilized to pay the costs referenced
                  in Paragraph 5. No advance shall be made if its making would
                  cause the aggregate unpaid balance of all advances outstanding
                  under the Revolving Credit Loans to exceed $8,400,000.00
                  (subject to downward adjustment pursuant to Paragraph 5 of
                  this Amendment).

            (iii) The Borrower shall provide to the Agent, with a copy to each
                  Lender, on a monthly basis, a written borrowing base
                  certificate certifying the amount of

                                       2
<PAGE>
                  Eligible Accounts Receivable, Eligible Inventory, outstanding
                  balance of the Revolving Credit Loans and available amount for
                  advance under the Borrowing Formula. The monthly borrowing
                  base certificate will be delivered no later than the 20th day
                  of the month immediately following the month covered by the
                  certificate. Failure to deliver the borrowing base certificate
                  in a timely manner shall constitute an Event of Default and
                  the interest rate shall adjust to the same rate as set forth
                  in paragraph 2(B)(i) above for an Unpermitted Overadvance, for
                  so long as such Event of Default exists.

      As used herein, Eligible Accounts Receivable and Eligible Inventory shall
have the following meanings:

      "Eligible Accounts Receivable" means an Account Receivable owing to
Borrower which, unless the Bank shall otherwise in its sole discretion agree,
meets with the following specifications at the time it comes into existence and
continues to meet the same until it is collected in full:

      (a)   The Account Receivable is due and payable not more than thirty (30)
days after the date of invoice therefore (or (45) days for customers that have
historically been billed on such basis), and is not more than ninety (90) days
past due;

      (b)   The Account Receivable arose from the performance of services or
sale of products by the Borrower;

      (c)   The Account Receivable is not subject to any prior assignment,
claim, lien or security interest and the Borrower will not make any further
assignment thereof or create any further security interest therein nor permit
the Borrower's rights therein to be reached by attachment, levy, garnishment or
other judicial process;

      (d)   The net value of an Account Receivable after allowable set off,
credit, or adjustment by the Account Debtor;

      (e)   Accounts Receivable shall not include: (i) amounts owed to Borrower
from any Subsidiary of Borrower; (ii) amounts due the Borrower from officers,
shareholders or employees; (iii) amounts carried on the books and records of the
Borrower as an intercompany or divisional receivable; (iv) the total receivables
owed by any Account Debtor having more than ten percent (10%) of its
indebtedness to the Borrower ninety (90) days or more past due from the date of
the invoice (excluding retainages); (v) foreign receivables other than
receivables from Canadian customers; (vi) any Account Receivable which the Bank
has reasonably determined in good faith is unsatisfactory; and (vii) retainages

                                       3
<PAGE>
      (f)   The term "Account Receivable" shall include all accounts, accounts
receivable, contract rights for the payment of money, chattel paper, and all
other obligations and receivables now owned or hereafter acquired by the
Borrower, whether now existing or hereafter arising. All accounts receivable
shall be processed through Borrower's lock box account with Agent.

      (g)   The term "Account Debtor" includes the buyer or lessee of services
or products from the Borrower.

      (h)   The term "Eligible Inventory" shall include raw materials and
completed products, but shall not include any work in progress.

      4.    Term Loan A:

      (A)   Section 2.05 (a)(ii) and all previous amendments thereto of the Loan
      Agreement is amended to read as follows:

            (ii)  Notwithstanding anything to the contrary in the foregoing
      paragraph (i), at no time during the term of the Agreement shall the
      aggregate amount of the Lenders' Term Loan A Commitment or the aggregate
      outstanding principal balance of Term Loan A, exceed $2,921,506.00. This
      aggregate amount represents an increase in principal of $500,000.00 over
      the current amount owing under Term Loan A which will be used to reduce
      the Revolving Credit Loans.

      (B)   Paragraph 2.06 and all previous amendments thereto of the Loan
      Agreement is amended to read in its entirety as follows:

            (i)   The unpaid principal amount of Term Loan A shall bear interest
            at the Prime Rate, plus 1% (currently 5.75%) to be adjusted on the
            1st of each month, based on adjustments to the Prime Rate. An
            aggregate payment of $56,142.00 (principal and interest) will be due
            on August 1, 2002 and monthly thereafter, subject to changes due to
            adjustment of the interest rate.

            (ii) Borrower will execute and deliver Replacement Term Loan A
            Note(s) as required by Lenders, substantially in the form attached
            as Exhibit B, and shall make aggregate payments for the Term Loan A
            Notes to the Agent. The maturity date for the Term Loan A Note shall
            be August 1, 2003. Monthly payments of principal and interest shall
            be based upon a sixty month amortization schedule. The monthly
            payment of principal and interest will be adjusted on the
            above-referenced dates to amortize the then remaining principal
            balance over the remaining term. Any prepayments of any kind,
            whether mandatory or optional, shall not reduce the calculation of
            the monthly payment of principal and interest, but shall be applied
            to the reduction of the principal balance of the Term Loan so as to
            have the effect of shortening the amortization period of Term Loan
            A. For example, assuming the interest rate is 5.75% and there is no
            change in the interest rate, the monthly payment would be $56,142.00
            per month. If a prepayment is made, the monthly payment would be
            $56,142.00 per month. If a prepayment is made, the monthly payment

                                       4
<PAGE>
            would remain at $56,142.00, but will be applied to principal and
            interest as if the amortization period for calculating loan payments
            was shortened.

      5.    Reduction of Credit Limit. If the Lease Obligations as defined in
the Sixth Amendment are less than $500,000.00, the $8,400,000.00 Revolving
Credit Facility Limit shall be permanently reduced, dollar for dollar, by the
difference between $500,000.00, and the actual costs; Borrower will provide
reasonable documentation of the Lease Obligations to the satisfaction of
Lenders. The Revolving Credit Facility Limit may be further reduced, without
limitation, in the event that Borrower enters into a transaction whereby assets
are sold outside of the ordinary course of business.

      6.    Conditions to Entering into Amendment.

      The obligation of each Lender to enter into this Agreement and to make
Loans on the date hereof is subject to the satisfaction of the following
conditions precedent, in addition to the conditions precedent set forth in
Section 4.02 of the Loan Agreement unless such conditions are waived hereby or
satisfied herein:

            a)    Fees, Expenses, etc. All fees and other compensation to be
                  paid to the Agent or the Lenders pursuant hereto, and pursuant
                  to any other written agreement on or prior to the date hereof
                  shall have been paid or received, and all invoiced expenses
                  incurred by the Agent pursuant hereto shall have been paid.

            b)    Extension Fee. An Extension Fee of 1% will be paid by the
                  Borrower as follows:

                  (i)   1/4% or $28,304.00 due on signing of this Amendment;

                  (ii)  An additional $28,304.00 will be due on each of the
                        following dates: September 27, 2002, December 27, 2002
                        and March 28, 2003;

            c)    Any "Escrow Amount" or "Holdback Amount" owing to Borrower
                  under the Agreement for Sale and Purchase of Assets with
                  Hughes will be applied to reduce Term Loan A.

            d)    Any "Contingency Payment" as referenced in the Agreement for
                  Sale and Purchase of Assets with Hughes, up to $150,000, will
                  be applied to reduce Term Loan A.

            e)    Additional terms and conditions, including reporting
                  requirements appropriate late payment penalties will be
                  included in the replacement notes contemplated herein.

                                       5
<PAGE>
            f)    Lenders shall have the right to require Borrower to retain, at
                  Borrower reasonable expense, an independent consultant
                  acceptable to Lenders, to monitor and/or audit any and all
                  managerial, operational and/or accounting functions of
                  Borrower, including but not limited to analysis of the
                  Borrower's business plans, cash flow forecasts and financial
                  projections, as well as advising the Borrower's management on
                  the preparation and presentation of such information.

      7.    Certain Representations. Borrower represents and warrants to the
Agent and each Lender as follows:

            a)    All Conditions contained in Section 4.02 of the Loan Agreement
                  have been satisfied in all material respects except as
                  otherwise specifically set forth herein or in Amendments First
                  through Seventh.

            b)    Borrower's Articles of Incorporation and By-Laws provided to
                  Agent on August 7, 1998 have not been amended or repealed.

            c)    The negative covenants of Borrower contained in Section 6.02
                  of the Loan Agreement are true and correct, except as
                  otherwise specifically set forth herein or in Amendments First
                  through Seventh.

      8.    Certain Financial Covenants.

            a)    Subsection (a) of Section 6.01 and all previous Amendments
                  thereto of the Loan Agreement is amended as follows:

                  (a)   For the fiscal quarter ending September 30, 2002, the 6
                        month period ending December 31, 2002, the 9 month
                        period ending March 31, 2003, and the 12 month period
                        ending June 30, 2003, permit the Fixed Charged Coverage
                        Ratio to be less than 1.5 to 1.

                        "Fixed Charged Coverage Ratio" shall mean, with respect
                        to the Borrower, the ratio of (i) EBITDA less taxes
                        paid, less capital expenditures, and less dividends and
                        other distributions, to (ii) current principal payments
                        due, plus interest expense, for the period covered by
                        the calculation.

                                       6
<PAGE>
            b)    The minimum Net Worth requirement contained in Subsection (b)
                  of Section 6.01 is waived for the term of this Amendment.

            c)    Subsection (c) of Section 6.01 and all previous Amendments
                  thereto of the Loan Agreement is amended as follows:

                  (c)   Permit the ratio of consolidated Funded Debt of Borrower
                        and its Subsidiaries when compared to the consolidated
                        EBITDA as calculated below at the same point in time, to
                        exceed the ratios set forth below for the period
                        indicated:

<TABLE>
<CAPTION>
                        Period               EBITDA                  Maximum
                        Covered              Calculation             Ratio
                        -------              -----------             -----
<S>                                          <C>                     <C>

                        3 months             Actual 3 months         5.0 to 1
                        ended 9/30/02        EBITDA times 4

                        6 months             Actual 6 months         4.25 to 1
                        ended 12/31/02       EBITDA times 2

                        9 months             Actual 9 months         3.5 to 1
                        3/31/02              EBITDA times 1.334

                        12 months            Actual 12 months        3.5 to 1
                        ended 6/30/03        EBIDTA
</TABLE>

      9.    Waiver. The Lenders hereby waive certain loan covenant defaults of
Borrower as of March 31, 2002 and as of the date hereof. Nothing contained
herein shall constitute a waiver of any future Events of Default, including but
not limited to, any future loan covenant defaults.

      10.   Miscellaneous. This Amendment is entered into pursuant to and in
accordance with Section 9.03 of the Loan Agreement. This Amendment may be
executed in counterparts, each of which shall be deemed an original and all of
which together shall constitute one and the same instrument. The parties agree
that they will cooperate in signing and delivering any documents necessary to
effectuate the terms of this Agreement. Except as expressly modified or amended
herein, the Loan Agreement and each of the other Loan Documents to which the
Borrower is a party is hereby restated, ratified and confirmed and shall remain
in full force and effect.

              [THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                       7
<PAGE>
      IN WITNESS WHEREOF, the parties hereto, by their officers thereunto duly
authorized, have caused this Eighth Amendment to Credit and Loan Agreement to be
duly executed and delivered as of the date first above written.

                                            TRANSMATION, INC.

                                        By: /s/ Carl E. Sassano
                                            -----------------------------
                                            CARL SASSANO, President & CEO

                                            KEYBANK NATIONAL ASSOCIATION, as
                                            Agent and a Lender

                                        By: /s/ Timothy Poynton
                                            -----------------------------
                                            Timothy Poynton, Sr. Vice President

                                            LENDERS:

                                            CITIZENS BANK OF MASSACHUSETTS,
                                            F.K.A. STATE STREET BANK AND TRUST
                                            COMPANY

                                        By: /s/ Thomas Opie
                                            -----------------------------
                                            Thomas Opie, Vice President

                                       8
<PAGE>
                          EXHIBIT A TO EIGHTH AMENDMENT

                                    RESTATED
                          TERM LOAN "A" PROMISSORY NOTE

$1,752,903.60                                                ROCHESTER, NEW YORK
                                                                   JULY 12, 2002

FOR VALUE RECEIVED, TRANSMATION, INC., an Ohio corporation (the "Borrower"), the
undersigned, promises to pay to the order of KEYBANK NATIONAL ASSOCIATION, a
national banking association (the "Lender") at its principal office in the City
of Buffalo, New York in lawful money of the United States, the sum of One
Million Seven Hundred Fifty-Two Thousand Nine Hundred Three and 60/100 Dollars
($1,752,903.60) plus interest thereon from August 1, 2002 at the per annum rate
determined as set forth below.

This note is a "Term Loan A Note" as referred to in, and is entitled to the
benefits of, the Credit and Loan Agreement, dated as of August 7, 1998, by and
among the Borrower, the Lender and other Lenders party thereto from time to time
and KeyBank National Association, as Agent (as has been amended, as amended on
the date hereof and as the same may be amended, modified or supplemented from
time to time, the "Agreement"), which among other things provides for the
imposition of late charges, the applicable rate of interest upon the occurrence
of an Event of Default, the acceleration of the maturity hereof upon the
occurrence of certain events and for prepayments in certain circumstances and
upon certain terms and conditions. Except as specifically modified herein, the
terms and conditions of the Agreement shall govern. Capitalized terms used
herein and not otherwise defined shall have the same meanings ascribed thereto
in the Agreement. This Restated Note supercedes and replaces prior Notes
delivered pursuant to the Agreement.

      1.    Payment Terms. The Borrower shall make payments of principal and
            interest as hereinafter provided to and including August 1, 2003, on
            which date all unpaid principal and interest and any other amounts
            owing under all Term Loan A Notes shall be due and payable (the
            "Maturity Date"). Beginning August 1, 2002 and continuing each month
            thereafter, Borrower shall make a payment of principal and interest
            to Agent with respect to all Term Loan A Notes in the amount of
            $56,142.00. Any prepayment, whether optional or mandatory, will not
            change the monthly payment amount calculated hereunder. In the event
            Borrower or any of its subsidiaries engages in any public sale of
            additional stock or in any private debt and/or equity offering,
            proceeds thereof shall, prior to application for any other purpose,
            be used to pay in full all principal, interest, fees, indemnity,
            expenses or other amounts due from Borrower under this Term Loan A
            Note.
<PAGE>
      2.    Interest Rates. The interest rate shall equal the Prime Rate, plus
            1%. The interest rate will be adjusted on the 1st day of each month
            beginning August 1, 2002 to equal the Prime Rate plus 1% on each
            date. The unpaid principal amount of the Term Loan A Notes shall
            bear interest at the rate so determined until the next adjustment
            date.

      3.    Acceleration. This Note may be declared to be immediately due and
            payable at the option of Lender in the event that Borrower defaults
            in making any payment required hereunder or there occurs or exists
            an Event of Default as defined under the Agreement. In such event
            the interest rate shall adjust as provided in the Agreement.

      4.    Waiver. The Borrower hereby expressly waives presentment, demand,
            notice, protest and all other demands and notices in connection with
            the delivery, acceptance, performance, default or enforcement of
            this Term Loan A Note and the Agreement.

      5.    Governing Law. This Term Loan A Note shall be governed by, construed
            and enforced in accordance with the laws of the State of New York
            (for contracts to be executed and performed entirely in the State)
            without regard or reference to principles of choice or conflict of
            law.

                                          TRANSMATION, INC.

                                          By:
                                              ------------------------------
                                               Carl Sassano, President/CEO
<PAGE>
(1 of 2 Pages)

                          EXHIBIT A TO EIGHTH AMENDMENT

                                    RESTATED
                          TERM LOAN "A" PROMISSORY NOTE

$1,168,602.40                                                ROCHESTER, NEW YORK
                                                                   JULY 12, 2002

FOR VALUE RECEIVED, TRANSMATION, INC., an Ohio corporation (the "Borrower"), the
undersigned, promises to pay to the order of CITIZENS BANK OF MASSACHUSETTS,
formerly known as State Street Bank and Trust Company (the "Lender") at its
principal office at 28 State Street, Boston, MA 02109 in lawful money of the
United States, the sum of One Million One Hundred Sixty-Eight Thousand Six
Hundred Two and 40/100 Dollars ($1,168,602.40) plus interest thereon from August
1, 2002 at the per annum rate determined as set forth below.

This note is a "Term Loan A Note" as referred to in, and is entitled to the
benefits of, the Credit and Loan Agreement, dated as of August 7, 1998, by and
among the Borrower, the Lender and other Lenders party thereto from time to time
and KeyBank National Association, as Agent (as has been amended, as amended on
the date hereof and as the same may be amended, modified or supplemented from
time to time, the "Agreement"), which among other things provides for the
imposition of late charges, the applicable rate of interest upon the occurrence
of an Event of Default, the acceleration of the maturity hereof upon the
occurrence of certain events and for prepayments in certain circumstances and
upon certain terms and conditions. Except as specifically modified herein, the
terms and conditions of the Agreement shall govern. Capitalized terms used
herein and not otherwise defined shall have the same meanings ascribed thereto
in the Agreement. This Restated Note supercedes and replaces prior Notes
delivered pursuant to the Agreement.

     1.   PAYMENT TERMS. The Borrower shall make payments of principal and
          interest as hereinafter provided to and including August 1, 2003, on
          which date all unpaid principal and interest and any other amounts
          owing under all Term Loan A Notes shall be due and payable (the
          "Maturity Date"). Beginning August 1, 2002 and continuing each month
          thereafter, Borrower shall make a payment of principal and interest to
          Agent with respect to all Term Loan A Notes in the amount of
          $56,142.00. Any prepayment, whether optional or mandatory, will not
          change the monthly payment amount calculated hereunder. In the event
          Borrower or any of its subsidiaries engages in any public sale of
          additional stock or in any private debt and/or equity offering,
          proceeds thereof shall, prior to application for any other purpose, be
          used to pay in full all principal, interest, fees, indemnity, expenses
          or other amounts due from Borrower under this Term Loan A Note.

<PAGE>
2 of 2 Pages

     2.   INTEREST RATES. The interest rate shall equal the Prime Rate, plus 1%.
          The interest rate will be adjusted on the 1st day of each month
          beginning August 1, 2002 to equal the Prime Rate plus 1% on each date.
          The unpaid principal amount of the Term Loan A Notes shall bear
          interest at the rate so determined until the next adjustment date.

     3.   ACCELERATION. This Note may be declared to be immediately due and
          payable at the option of Lender in the event that Borrower defaults in
          making any payment required hereunder or there occurs or exists an
          Event of Default as defined under the Agreement. In such event the
          interest rate shall adjust as provided in the Agreement.

     4.   WAIVER The Borrower hereby expressly waives presentment, demand,
          notice, protest and all other demands and notices in connection with
          the delivery, acceptance, performance, default or enforcement of this
          Term Loan A Notes and the Agreement.

     5.   GOVERNING LAW. This Term Loan A Note shall be governed by, construed
          and enforced in accordance with the laws of the State of New York (for
          contracts to be executed and performed entirely in the State) without
          regard or reference to principles of choice or conflict of law.

                                              TRANSMATION, INC.

                                              By: ______________________________
                                                     Carl Sassano, President/CEO

<PAGE>
                         EXHIBIT "B" TO EIGHTH AMENDMENT

                                    RESTATED
                              REVOLVING CREDIT NOTE

$5,040,000.00                                                ROCHESTER, NEW YORK
                                                                   JULY 12, 2002

      FOR VALUE RECEIVED, the undersigned, TRANSMATION, INC., an Ohio
corporation (the "Borrower"), promises to pay to the order of KEYBANK NATIONAL
ASSOCIATION, a national banking association (the "Lender") at its Buffalo, New
York office on or before August 1, 2003, and at such earlier dates as may be
required by the Agreement (as defined below), the lesser of (i) the principal
sum of Five Million Forty Thousand and 00/100 Dollars ($5,040,000.00) or (ii)
the aggregate unpaid principal amount of all Revolving Credit Loans made by the
Lender to the Borrower from time to time pursuant to the Agreement as defined
below. The Borrower further promises to pay to the order of the Lender interest
on the unpaid principal amount hereof from time to time outstanding at the rate
per annum equal to the Prime Rate from time to time, plus 1%, payable on the
dates set forth in the Agreement.

      This Note is a "Revolving Credit Note" as referred to in, and is entitled
to the benefits of, the Credit and Loan Agreement, dated as of August 7, 1998,
by and among the Borrower, the Lender and other Lenders party thereto from time
to time and KeyBank National Association, as Agent (as the same may be amended,
modified or supplemented from time to time, the "Agreement"), which among other
things provides for the imposition of late charges, the applicable rate of
interest upon the occurrence of an Event of Default, the acceleration of the
maturity hereof upon the occurrence of certain vents and for prepayments in
certain circumstances and upon certain terms and conditions. Capitalized terms
used herein and not otherwise defined shall have the same meanings as ascribed
thereto in the Agreement. This Restated Note supercedes and replaces prior Notes
delivered pursuant to the Agreement.

      The Borrower hereby expressly waives presentment, demand, notice, protest
and all other demands and notices in connection with the delivery, acceptance,
performance, default or enforcement of this Note and the Agreement.

      This Note shall be governed by, construed and enforced in accordance with
the Laws of the State of New York (for contracts to be executed and performed
entirely in the State) without regarding or reference to principles of choice or
conflict of law.

                                    TRANSMATION, INC.

                                    By:
                                        -----------------------------
                                         Carl Sassano, President/CEO
<PAGE>
                         EXHIBIT "B" TO EIGHTH AMENDMENT

                                    RESTATED
                              REVOLVING CREDIT NOTE

$3,360,000.00                                                ROCHESTER, NEW YORK
                                                                   JULY 12, 2002

      FOR VALUE RECEIVED, the undersigned, TRANSMATION, INC., an Ohio
corporation (the "Borrower"), promises to pay to the order of CITIZENS BANK OF
MASSACHUSETTS, formerly known as State Street Bank and Trust Company (the
"Lender") at its principal office at 28 State Street, Boston, MA 02109 on or
before August 1, 2003, and at such earlier dates as may be required by the
Agreement (as defined below), the lesser of (i) the principal sum of Three
Million Three Hundred and Sixty Thousand and 00/100 Dollars ($3,360,000.00) or
(ii) the aggregate unpaid principal amount of all Revolving Credit Loans made by
the Lender to the Borrower from time to time pursuant to the Agreement as
defined below. The Borrower further promises to pay to the order of the Lender
interest on the unpaid principal amount hereof from time to time outstanding at
the rate per annum equal to the Prime Rate from time to time, plus 1%, payable
on the dates set forth in the Agreement.

      This Note is a "Revolving Credit Note" as referred to in, and is entitled
to the benefits of, the Credit and Loan Agreement, dated as of August 7, 1998,
by and among the Borrower, the Lender and other Lenders party thereto from time
to time and KeyBank National Association, as Agent (as the same may be amended,
modified or supplemented from time to time, the "Agreement"), which among other
things provides for the imposition of late charges, the applicable rate of
interest upon the occurrence of an Event of Default, the acceleration of the
maturity hereof upon the occurrence of certain vents and for prepayments in
certain circumstances and upon certain terms and conditions. Capitalized terms
used herein and not otherwise defined shall have the same meanings as ascribed
thereto in the Agreement. This Restated Note supercedes and replaces prior Notes
delivered pursuant to the Agreement.

      The Borrower hereby expressly waives presentment, demand, notice, protest
and all other demands and notices in connection with the delivery, acceptance,
performance, default or enforcement of this Note and the Agreement.

      This Note shall be governed by, construed and enforced in accordance with
the Laws of the State of New York (for contracts to be executed and performed
entirely in the State) without regarding or reference to principles of choice or
conflict of law.

                                    TRANSMATION, INC.

                                    By:
                                        -----------------------------
                                         Carl Sassano, President/CEO-------------------------------------------------------------------------------

                                                                    Exhibit 4.3

                        SUN INTERNATIONAL HOTELS LIMITED
                      SUN INTERNATIONAL NORTH AMERICA, INC.

                                     Issuer

                                       and

                              THE BANK OF NEW YORK

                                     Trustee

                          SECOND SUPPLEMENTAL INDENTURE
                            Dated as of May 20, 2002

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

                    8-7/8% SENIOR SUBORDINATED NOTES DUE 2011

Supplementing the Indenture dated as of August 14, 2001, among Sun International
   Hotels Limited and Sun International North America, Inc., as Issuers, the
         Guarantors named therein and the Bank of New York, as Trustee,
                      as amended and supplemented to date

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

<PAGE>

          SECOND SUPPLEMENTAL INDENTURE dated as of May 20, 2002, among Sun
International Hotels Limited, an international business company organized under
the laws of the Commonwealth of The Bahamas (the "Company" or "Sun
International"), Sun International North America, Inc., a Delaware corporation
and a wholly owned subsidiary of the Company ("SINA" and, together with the
Company, the "Issuers") and The Bank of New York (the "Trustee"), as Trustee
under the Indenture referred to herein.

                              W I T N E S S E T H:
                              - - - - - - - - - -

          WHEREAS, the Issuers, the Guarantors, and the Trustee heretofore
executed and delivered an Indenture dated as of August 14, 2001, as amended by
the Supplemental Indenture dated September 19, 2001 (as amended, the
"Indenture"), in respect of the Issuers' 8-7/8% Senior Subordinated Notes due
2011;

          WHEREAS, the Indenture provides that, subject to Section 4.10 of the
Indenture and applicable law, the Issuers may issue Additional Securities under
the Indenture and that the Securities issued on the Issue Date and any
Additional Securities subsequently issued shall be treated as a single class for
all purposes under the Indenture;

          WHEREAS, pursuant to that certain Purchase Agreement, dated as of May
9, 2002, by and between the Issuers, the Guarantors and the initial purchasers
party thereto, the Issuers have agreed to issue $200 million of Additional
Securities (the "Offered Securities");

          WHEREAS, the Indenture provides that the Issuers or any of the
Guarantors and the Trustee may amend or supplement the Indenture, the Securities
or any Guarantee, without the consent of any Holder of a Security to provide for
the issuance of Additional Securities in accordance with the limitations set
forth in the Indenture as of the Issue Date;

          WHEREAS, in connection with the issuance of the Offered Securities,
the Issuers desire to amend the Indenture as set forth in Article I hereof;

          WHEREAS, the Indenture provides that the Issuers or any of the
Guarantors and the Trustee may amend or supplement the Indenture, the Securities
or any Guarantee, without the consent of any Holder of a Security to cure any
ambiguity, defect or inconsistency;

          WHEREAS, the Issuers desire to amend the Indenture as provided in this
Second Supplemental Indenture to cure certain defects in the Indenture; and

          WHEREAS, this Second Supplemental Indenture has been duly authorized
by all necessary corporate action on the part of the Issuers.

          NOW, THEREFORE, the Issuers and the Trustee agree as follows for the
equal and ratable benefit of the Holders of the Securities:

                                         2

<PAGE>

                                    ARTICLE I
                                   AMENDMENTS

          SECTION 1.1 Definitions.

          Section 1.1 of the Indenture is amended by replacing the definitions
of "Exchange Offer" and "Registration Rights Agreement" in their entirety with
the following new definitions:

          "Exchange Offer" means (i) in respect of the Original Securities and
Guarantees thereof issued on the Issue Date, the offer by the Issuers and the
Guarantors to exchange the Series B Securities and Guarantees thereof for the
Original Securities and Guarantees thereof issued on the Issue Date and (ii) in
respect of the Additional Securities and Guarantees thereof issued on May 20,
2002, the offer by the Issuers and the Guarantors to exchange the Series B
Securities and Guarantees thereof for such Additional Securities and Guarantees
thereof, in each case made pursuant to the applicable Registration Rights
Agreement.

          "Registration Rights Agreement" means (i) in respect of the Original
Securities and Guarantees thereof issued on the Issue Date, the Registration
Rights Agreement by and among the Issuers, the Guarantors and the Initial
Purchasers, dated as of the Issue Date, and (ii) in respect of the Additional
Securities and Guarantees thereof issued on May 20, 2002, the Registration
Rights Agree ment, by and among the Issuers, the Guarantors and the Initial
Purchasers, dated as of May 20, 2002.

          Section 1.1 of the Indenture is hereby amended by replacing the
penultimate sentence of the definition of "Indebtedness" with the following new
sentence, in order to clarify who shall determine the Fair Market Value of
Disqualified Capital Stock:

          "For purposes hereof, the "maximum fixed repurchase price" of any
Disqualified Capital Stock which does not have a fixed repurchase price shall be
calculated in accordance with the terms of such Disqualified Capital Stock as if
such Disqualified Capital Stock were purchased on any date on which Indebtedness
shall be required to be determined pursuant to this Indenture, and if such price
is based upon, or measured by, the Fair Market Value of such Disqualified
Capital Stock, such Fair Market Value to be determined in good faith by the
Board of Directors of the issuer of such Disqualified Capital Stock."

          SECTION 1.2 Execution and Authentication. Section 2.2 of the Indenture
is hereby amended by replacing the proviso in the fourth paragraph with the
following proviso:

          "provided that such Series B Securities shall be issuable only upon
the valid surrender for cancellation of Original Securities or Additional
Securities of a like aggregate principal amount in accordance with the
applicable Registration Rights Agreement."

          SECTION 1.3 Trustee's Acceptance. The Trustee hereby accepts this
Second Supplemental Indenture and agrees to perform the same under the terms and
conditions set forth in the Indenture.

                                   ARTICLE II
                                  Miscellaneous

          SECTION 2.1. Interpretation. Upon execution and delivery of this
Second Supplemental Indenture, the Indenture shall be modified and amended in
accordance with this Second Supplemental Indenture, and all the terms and
conditions of both shall be read together as though they constitute one
instrument, except that, in case of conflict, the provisions of this Second
Supplemental Indenture will

                                        3

<PAGE>

control. The Indenture, as modified and amended by this Second Supplemental
Indenture, is hereby ratified and confirmed in all respects and shall bind every
Holder of Securities. In case of conflict between the terms and conditions
contained in the Securities and those contained in the Indenture, as modified
and amended by this Second Supplemental Indenture, the provisions of the
Indenture, as modified and amended by this Second Supplemental Indenture, shall
control.

          SECTION 2.2. Conflict with Trust Indenture Act. If any provision of
this Second Supplemental Indenture limits, qualifies or conflicts with any
provision of the TIA that is required under the TIA to be part of and govern any
provision of this Second Supplemental Indenture, the provision of the TIA shall
control. If any provision of this Second Supplemental Indenture modifies or
excludes any provision of the TIA that may be so modified or excluded, the
provision of the TIA shall be deemed to apply to the Indenture as so modified or
to be excluded by this Second Supplemental Indenture, as the case may be.

          SECTION 2.3. Severability. In case any provision in this Second
Supplemental Indenture shall be invalid, illegal or unenforceable, the validity,
legality and enforceability of the remaining provisions shall not in any way be
affected or impaired thereby.

          SECTION 2.4. Terms Defined in the Indenture. All capitalized terms not
otherwise defined herein shall have the meanings ascribed to them in the
Indenture.

          SECTION 2.5. Headings. The Article and Section headings of this
Second Supplemental Indenture have been inserted for convenience of reference
only, are not to be considered a part hereof and shall in no way modify or
restrict any of the terms or provisions hereof.

          SECTION 2.6. Benefits of Supplemental Indenture, etc. Nothing in this
Second Supplemental Indenture or the Securities, express or implied, shall give
to any Person, other than the parties hereto and thereto and their successors
hereunder and thereunder and the Holders of the Securities, any benefit of any
legal or equitable right, remedy or claim under the Indenture, this Second
Supplemental Indenture or the Securities.

          SECTION 2.7. Successors. All agreements of the Issuers in this Second
Supplemental Indenture shall bind their successors. All agreements of the
Trustee in this Second Supplemental Indenture shall bind its successors.

          SECTION 2.8. Trustee Not Responsible for Recitals. The Trustee shall
not be responsible in any manner whatsoever for or in respect of the validity or
sufficiency of this Second Supplemental Indenture or for or in respect of the
correctness of the recitals of fact contained herein, all of which recitals are
made solely by the Issuers.

          SECTION 2.9. Certain Duties and Responsibilities of the Trustee. In
entering into this Second Supplemental Indenture, the Trustee shall be entitled
to the benefit of every provision of the Indenture relating to the conduct or
affecting the liability or affording protection to the Trustee, whether or not
elsewhere herein so provided.

          SECTION 2.10. Governing Law. This Second Supplemental Indenture shall
be governed by and construed in accordance with the internal laws of the State
of New York, as applied to contracts made and performed within the State of New
York, without regard to principles of conflicts of law. The Issuers hereby
irrevocably submit to the jurisdiction of any New York State court sitting in
the Borough of Manhattan in the City of New York or any Federal court sitting in
the Borough of Manhattan in the City of New York in respect of any suit, action
or proceeding arising out of or relating to this Second Supplemental Indenture,
and irrevocably accepts for itself and in respect of its property,

                                        4

<PAGE>

generally and unconditionally, jurisdiction of the aforesaid courts. The Issuers
irrevocably waive, to the fullest extent they may effectively do so under
applicable law, trial by jury and any objection which they may now or hereafter
have to the laying of the venue of any such suit, action or proceeding brought
in any such court and any claim that any such suit, action or proceeding brought
in any such court has been brought in an inconvenient forum. Nothing herein
shall affect the right of the Trustee or any securityholder to serve process in
any other manner permitted by law or to commence legal proceedings or otherwise
proceed against the Issuers or any Guarantor in any other jurisdiction.

          SECTION 2.11. Duplicate Originals. All parties may sign any number of
copies or counterparts of this Second Supplemental Indenture. Each signed copy
or counterpart shall be an original, but all of them together shall represent
the same agreement.

                            (signature pages follow)

                                        5

<PAGE>

          IN WITNESS WHEREOF, each party hereto has caused this Second
Supplemental Indenture to be signed by its officer thereto duly authorized as of
the date first written above.

                                          SUN INTERNATIONAL HOTELS LIMITED

                                          By: /s/ John R. Allison
                                              ----------------------------------
                                             Name: John R. Allison
                                             Title: Executive Vice President
                                                    and Chief Financial Officer

                                          By: /s/ Charles D. Adamo
                                              ----------------------------------
                                             Name: Charles D. Adamo
                                             Title: Executive Vice President
                                                    and General Counsel

                                          SUN INTERNATIONAL NORTH AMERICA, INC.

                                          By: /s/ John R. Allison
                                              ----------------------------------
                                             Name: John R. Allison
                                             Title: Executive Vice President
                                                    and Chief Financial Officer

                                          By: /s/ Charles D. Adamo
                                              ----------------------------------
                                             Name: Charles D. Adamo
                                             Title: Executive Vice President
                                                    and General Counsel

                                          THE BANK OF NEW YORK, as Trustee

                                          By: /s/ Mary LaGumina
                                              ----------------------------------
                                             Name: Mary LaGumina
                                             Title: Vice President

                                        6

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