Document:

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                                                                   Exhibit 10.17

                                AMENDMENT No. 13

                                       to

                       AMETEK RETIREMENT AND SAVINGS PLAN

            WHEREAS, there was adopted and made effective as of October 1, 1984,
the AMETEK Retirement and Savings Plan (the "Plan"); and

            WHEREAS, the Plan was amended and restated in its entirety,
effective January 1, 1997; and

            WHEREAS, Section 10.1 of the Plan provides that AMETEK, Inc.
("AMETEK") may amend the Plan at any time, and from time to time; and

            WHEREAS, AMETEK now desires to amend the Plan to decrease the
minimum age for eligibility from 21 to 18 and to provide for immediate 100%
vesting of Employer Matching Contribution:

            NOW, THEREFORE, the Plan is hereby amended as follows:

            FIRST: Section 2.2(a) of the Plan to read in its entirety as
follows:

                        "a. Participant. Any other Employee, who is not an
            ineligible employee as described in Section 2.3(a), shall become a
            Participant in the Plan as of the Entry Date which follows his date
            of hire by at least thirty-one (31) days and is on or after the date
            on which he first attains age 18, provided he signifies his
            acceptance of the Plan in accordance with Section 2.5. Any Employee
            who is an ineligible employee as described in Section 2.3(a), but
            who on or after January 1, 1997 becomes an eligible employee and
            meets the requirements of the previous sentence, shall become a
            Participant on the next Entry Date which is at least thirty-one (31)
            days from his most recent date of hire. An Employee shall remain a
            Participant as long as he continues to meet the requirements of this
            Section 2.2(a)."
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            SECOND: Section 4.4.(d) of the Plan is amended by making a change to
the second sentence to read in its entirety as follows:

                        "(d) Special Participant Rule. For purposes of
            Subsection (a), (b) and (c), the term "Participants" includes
            Employees eligible to participate in the Plan in accordance with
            Article II whether or not they elected to participate in the Plan or
            make a Deferral Election. For Plan Years commencing on and after
            January 1, 2001, "Participants" shall not include Employees who are
            non-Highly Compensated Employees and who have not attained age 18
            and who have completed less than 1 Year of Service before the last
            day of the Plan Year."

            THIRD: Section 4.6 of the Plan is amended by making a change to the
second sentence to read in its entirety as follows:

                        "Non-Forfeitability of Certain Accounts. A Participant's
            rights to his Deferral Election Account, his Matching Contribution
            Account, and his Rollover Contribution Account, if any, shall, at
            all times, be 100% nonforfeitable. The forfeitability of a
            Participant's rights to his Retirement Account, if applicable, shall
            be determined in accordance with the provisions of Section 6.1(b)."

            FOURTH: Section 6.1(b) of the Plan is amended by changing sentence 3
and deleting sentence 4 to read in its entirety as follows:

                        "(b) Termination of Employment. Upon a Participant's
            termination of employment with the Employer, either voluntarily or
            involuntarily, prior to his Normal Retirement Age (other than by
            reason of death, or early or Disability retirement) he shall be
            entitled to 100% of the value of his Deferral Election Account, his
            Matching Contribution Account, and his Rollover Contribution, if
            any. A Retirement Participant shall also be entitled to 100% of the
            value of his Retirement Account, if, as of the date of his
            termination, he has completed 5 Years of Service. If such Retirement
            Participant has not completed 5 Years of Service he shall forfeit
            the entire amount outstanding to his credit in his Retirement
            Account as of the last day of the Plan Year in which he terminates
            employment. The value of all Accounts shall be determined and
            payable in accordance with the provisions of Sections 5.2, 5.3 and
            6.5. Amounts forfeited in any Plan Year pursuant to this Section
            6.1(b) shall be applied to reduce Matching Contributions made
            pursuant to Section 4.2(b) for such Plan Year."

                                       2
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            FIFTH: The provisions of this Amendment No. 13 shall be effective as
of January 1, 2001.

            IN WITNESS WHEREOF, AMETEK has caused these presents to be executed,
in its corporate name, by its duly authorized officer on this 13th day of
November, 2000.

                                                AMETEK, Inc.

                                                By: /s/ Donna F. Winquist
                                                    ---------------------------

Attest:

/s/ Kathryn E. Londra
-----------------------------

                                       3<PAGE>   1
                                                                   Exhibit 10.35

                 SIXTH AMENDMENT AND CONSENT TO CREDIT AGREEMENT

            SIXTH AMENDMENT AND CONSENT TO CREDIT AGREEMENT (this "Amendment"),
dated as of September 22, 2000, among AMETEK, INC. (the "Borrower"), the
financial institutions party to the Credit Agreement referred to below (the
"Banks"), BANK OF AMERICA, N.A. (f/k/a Bank of America Illinois), BANK OF
MONTREAL, FIRST UNION NATIONAL BANK and PNC BANK, NATIONAL ASSOCIATION, as
Co-Agents (the "Co-Agents"), and THE CHASE MANHATTAN BANK, as Administrative
Agent (the "Administrative Agent"). All capitalized terms used herein and not
otherwise defined shall have the respective meanings provided such terms in the
Credit Agreement.

                             W I T N E S S E T H:

            WHEREAS, the Borrower, the Banks, the Co-Agents and the
Administrative Agent are parties to a Credit Agreement, dated as of August 2,
1995, and amended and restated as of September 12, 1996 (as in effect on the
date hereof, the "Credit Agreement"); and

            WHEREAS, the parties hereto wish to amend the Credit Agreement as
herein provided;

            NOW, THEREFORE, it is agreed:

I.    Amendments and Consent.

            1. Section 8.03 of the Credit Agreement is hereby amended by
changing the designation of clause "(s)" thereof, which was inserted therein
pursuant to Section 4 of the Third Amendment to Credit Agreement, dated as of
June 15, 1998, to that of clause "(u)".

            2. Section 8.03 of the Credit Agreement is hereby further amended by
(i) deleting the word "and" appearing at the end of clause (t) thereof, (ii)
deleting the period appearing at the end of clause (u) thereof and inserting ";
and" in lieu thereof, and (iii) inserting a new clause (v) at the end of such
Section 8.03, as follows:

            "(v) Indebtedness representing Permitted Foreign Subsidiary
      Guaranteed WC Debt, provided that (x) the obligors thereunder are Foreign
      Subsidiaries (other than AMETEK Italia), although the Borrower shall be
      permitted to guarantee such Permitted Foreign Subsidiary Guaranteed WC
      Debt, and (y) the aggregate principal amount thereof at any one time
      outstanding shall not exceed $30,000,000, provided, however, that the
      aggregate principal amount thereof at any one time outstanding may exceed
      $30,000,000 solely by virtue of changes in the exchange rates (and not as
      a result of the additional incurrence of any new Indebtedness) for the
      currencies in which any such Permitted Foreign Subsidiary Guaranteed WC
      Debt is denominated for a period not in excess of one month after any date
      upon which it is so determined that the aggregate principal amount
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      of Permitted Foreign Subsidiary Guaranteed WC Debt exceeds $30,000,000 as
      a result solely of such a change in exchange rates."

            3. Section 10 of the Credit Agreement is hereby amended by inserting
in appropriate alphabetical order the following new definitions:

            "Permitted Foreign Subsidiary Guaranteed WC Debt" shall mean
      Indebtedness of a Foreign Subsidiary (other than AMETEK Italia) the
      proceeds of which are used to finance working capital requirements of such
      Foreign Subsidiary, it being understood that such Indebtedness may be
      guaranteed by the Borrower, provided, however, that no Permitted Foreign
      Subsidiary Guaranteed WC Debt (other than up to $5,000,000 of such Debt
      outstanding under a line of credit existing as of the Sixth Amendment
      Effective Date between the Borrower and certain of its Foreign
      Subsidiaries, including Ametek do Brasil, and ABN AMRO Bank (the "Umbrella
      Agreement") may be incurred or assumed which contains any provision in the
      documents governing or evidencing the same which, in the reasonable
      opinion of the Administrative Agent, would permit a default or event of
      default to occur under such Permitted Foreign Subsidiary Guaranteed WC
      Debt based upon the occurrence of a Default or Event of Default under this
      Agreement unless any such Event of Default has resulted in an acceleration
      under this Agreement. It is understood and agreed that the aggregate
      Dollar amount of Permitted Foreign Subsidiary Guaranteed WC Debt
      outstanding at any time shall be determined at the spot exchange rate for
      the currency in question at such time of determination. The incurrence of
      Permitted Foreign Subsidiary Guaranteed WC Debt shall be deemed to be a
      representation and warranty by the Borrower that all conditions thereto
      have been satisfied and that same is permitted in accordance with the
      terms of this Agreement, which representation and warranty shall be deemed
      to be a representation and warranty for all purposes hereunder, including,
      without limitation, Sections 5.02 and 9.

            "Sixth Amendment Effective Date" shall mean the Amendment Effective
      Date under and as defined in the Sixth Amendment and Consent, dated as of
      September 22, 2000, to this Agreement.

II.   Miscellaneous.

            1. In order to induce the Banks to enter into this Amendment, the
Borrower hereby represents and warrants that:

                  (a) on the Amendment Effective Date, no Default or Event of
      Default exists, both before and after giving effect to this Amendment; and

                  (b) on and as of the Amendment Effective Date, all
      representations and warranties contained in the Credit Agreement or the
      other Credit Documents are true and correct in all material respects, both
      before and after giving effect to this Amendment.

                                       2
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            2. This Amendment is limited as specified and shall not constitute a
modification, acceptance or waiver of any other provision of the Credit
Agreement or any other Credit Document.

            3. This Amendment may be executed in any number of counterparts and
by the different parties hereto on separate counterparts, each of which
counterparts when executed and delivered shall be an original, but all of which
shall together constitute one and the same instrument. A complete set of
counterparts shall be lodged with the Borrower and the Administrative Agent.

            4. THIS AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES
HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY THE LAW OF THE
STATE OF NEW YORK.

            5. This Amendment shall become effective on the date (the "Amendment
Effective Date") when the Borrower and the Required Banks shall have signed a
counterpart hereof (whether the same or different counterparts) and shall have
delivered (including by way of facsimile transmission) the same to the
Administrative Agent at its Notice Office.

                                  *  *  *

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            IN WITNESS WHEREOF, the parties hereto have caused their duly
authorized officers to execute and deliver this Amendment as of the date first
above written.

                                       AMETEK, INC.

                                       By: /s/ Deirdre D. Saunders
                                           ----------------------------------
                                           Title: Vice President & Treasurer

                                       THE CHASE MANHATTAN BANK,
                                          Individually and as Administrative
                                          Agent

                                       By: /s/Gail Weiss
                                           ----------------------------------
                                           Title: Vice President

                                       BANK OF MONTREAL,
                                          Individually and as a Co-Agent

                                       By: /s/ Bruce A. Pietka
                                           ----------------------------------
                                           Title: Director

                                       FIRST UNION NATIONAL BANK,
                                          Individually and as a Co-Agent

                                       By: /s/ Ruth E. Leone
                                           ----------------------------------
                                           Title: Vice President

                                       PNC BANK, NATIONAL ASSOCIATION,
                                          Individually and as a Co-Agent

                                       By:  /s/ Amy T. Petersen
                                           ----------------------------------
                                           Title: Vice President

                                       BANK OF AMERICA, N.A.,

                                          Individually and as a Co-Agent

                                       By:  /s/ John W. Pocalyko
                                           ----------------------------------
                                           Title: Managing Director
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                                       ABN AMRO BANK N.V., NEW YORK BRANCH

                                       By:  /s/ Juliette Mound
                                           ----------------------------------
                                           Title: Assistant Vice President

                                       By:  /s/ Donald Sutton
                                           ----------------------------------
                                           Title: Vice President

                                       MELLON BANK, N.A.

                                       By: /s/ Leonard M. Karpen, Jr.
                                           ----------------------------------
                                           Title: Vice President

                                       CARIPLO-CASSA DI RISPARMIO DELLE
                                          PROVINCIE LOMBARDE S.P.A.

                                       By:
                                           ----------------------------------
                                           Title:

                                       By:
                                           ----------------------------------
                                           Title:

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