Document:

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                                                                   EXHIBIT 10.11
                                 AMENDMENT No. 7

                                       to

                     THE 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, effective as of January 1, 1997, the employees of the Dixson
Division became eligible to be Retirement Participants subject to certain
requirements and whereas AMETEK desires to document this participation by the
inclusion of a separate paragraph in Appendix I of the Plan; 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;

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

         FIRST: Appendix I to the Plan is amended by adding a new Section 6 to
the end thereof to read in its entirety as follows:

                  "6. Effective January 1, 1997, employees of the Dixson
         Division are eligible to be Retirement Participants, subject to the
         Entry Date requirements set forth in Section 2.2(b) of the Plan. Solely
         for purposes of determining Employer Retirement Contributions and
         Employer Incentive Retirement Contributions, Years of Service shall
         mean Periods of Service as an employee of the Company or its
         Affiliates."

                  SECOND: The provisions of this Amendment No. 7 shall be
         effective as of January 1, 1999.

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                  IN WITNESS WHEREOF, AMETEK has caused these presents to be
         executed, in its corporate name, by its duly authorized officer on this
         31st day of March, 1999.

                                             AMETEK, Inc.

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

Attest:

/s/ Kathryn E. Londra
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                                                                   EXHIBIT 10.12
                                 AMENDMENT No. 8

                                       to

                     THE 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 in certain respects;

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

         FIRST: The first sentence of Section 6.6 of the Plan is deleted and the
following is substituted:

                  "Notwithstanding anything contained in this Plan to the
         contrary, if the total value of a Participant's, Retirement
         Participant's, Former Participant's or Former Retirement Participant's
         Accounts is $5,000 or less, the Committee shall pay such benefit in a
         single lump sum as soon as practicable after the retirement,
         termination, Disability or death of the Participant, Retirement
         Participant, Former Participant or Former Retirement Participant, and
         any such distribution to the Participant, Retirement Participant,
         Former Participant, Former Retirement Participant or his Beneficiary,
         as the case may be, shall be in complete discharge of the Plan's
         obligation with respect to such benefit."

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         SECOND: The provisions of this Amendment No. 8 shall be effective as of
January 1, 1999.

         IN WITNESS WHEREOF, AMETEK has caused these presents to be executed, in
its corporate name, by its duly authorized officer on this 30th day of April,
1999.

                                         AMETEK, Inc.

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

Attest:

/s/ Kathryn E. Londra
----------------------<PAGE>   1
                                                                   EXHIBIT 10.13
                                 AMENDMENT No. 9

                                       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 in certain respects;

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

         FIRST: Section 2.3(a) of the Plan shall be amended to read in its
entirety:

                  "a. Notwithstanding Sections 2.1 or 2.2, an Employee shall not
         be eligible to be a Participant in this Plan if (i) he is a Leased
         Employee, unless the participation of such Leased Employee in the Plan
         is required so that the Plan meets the applicable requirements of
         Section 414(n)(3) of the Code, (ii) he is eligible to participate in
         the AMETEK 401(k) Plan for Acquired Businesses; or (iii) he is an
         employee whose terms and conditions of employment are determined
         pursuant to the terms of a collective bargaining agreement; unless the
         collective bargaining agreement provides for the inclusion of such
         Employee in the Plan, in which case the Employee will be eligible to
         participate in the Plan, pursuant to Section 2.2, on the later of the
         date specified in the collective bargaining agreement or the next
         January 1st which is on or after the date he completes the eligibility
         requirements set forth in Section 2.2."

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                  SECOND: The provisions of this Amendment No. 9 shall be
         effective as of May 1, 1999.

         IN WITNESS WHEREOF, AMETEK has caused these presents to be executed, in
its corporate name, by its duly authorized officer on this 12th day of May,
1999.

                                          AMETEK, Inc.

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

/s/ Kathryn E. Londra
---------------------<PAGE>   1

                                                                   EXHIBIT 10.14
                                AMENDMENT No. 10

                                       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 in certain respects;

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

         FIRST: A new Appendix VI is hereby added to the Plan, to read in its
entirety as follows:

                                   APPENDIX VI

                     SPECIAL PROVISIONS RELATING TO CERTAIN
                 EMPLOYEES TRANSFERRING TO THE NATIONAL CONTROLS
                      CORPORATION DIVISION OF AMETEK, INC.

                  1. The provisions of this Appendix VI shall apply only to the
         following employees of the National Controls Corporation Division of
         AMETEK, Inc. ("NCC"), Roger Piegza, Shawn Cabin, Arlin Demerer, William
         Gladfelter, Richard Grudzien, Dorothy Jones, Frank Kay, Insoon Kim,
         Stephan Kunca, Charles Laufer, Thomas Ryan, Charles Sheridan, John
         Thacker and Ervin Whitfield, who directly transferred their employment
         from the Panalarm Division of AMETEK, Inc. ("Panalarm") to NCC upon the
         dissolution of Panalarm by the Company.

                  2. Roger Piegza shall remain eligible to participate in the
         Plan upon his transfer to NCC.

                  3. Shawn Cabin, Arlin Demerer, William Gladfelter, Richard
         Grudzien, Dorothy Jones, Frank Kay, Insoon Kim, Stephan Kunca, Charles
         Laufer, Thomas Ryan, Charles Sheridan, John Thacker and Ervin Whitfield

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         shall remain eligible to participate in 401(k) feature of the Plan upon
         their transfer to NCC.

                  4. Except to the extent set forth above, defined terms used in
         this Appendix VI shall have the same meaning as used in the Plan.

                  SECOND: The provisions of this Amendment No. 10 shall be
         effective as of August 13, 1999.

                  IN WITNESS WHEREOF, AMETEK has caused these presents to be
         executed, in its corporate name, by its duly authorized officer on this
         7th day of September, 1999.

                                         AMETEK, Inc.

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

Attest:

/s/ Kathryn E. Londra
-----------------------<PAGE>   1
                                                                   EXHIBIT 10.35
                             AMENDMENT NO. 1 TO THE
                          1997 STOCK INCENTIVE PLAN OF
                                  AMETEK, INC.

         WHEREAS, AMETEK, Inc. (formerly known as Ametek Aerospace Products,
Inc.) (the "Company") has adopted the 1997 Stock Incentive Plan of AMETEK, Inc.
(formerly known as the 1997 Stock Incentive Plan of Ametek Aerospace Products,
Inc.) (the "Plan"); and

         WHEREAS, Section 19 of the Plan permits the Committee, as defined in
the Plan (the "Committee"), to amend the Plan; and

         WHEREAS, the Committee now desires to amend the Plan in certain
respects;

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

         1. Section 13 of the Plan is hereby amended by adding the following
sentence after the first sentence in the second paragraph thereof:

         "Moreover, the Committee may, in its sole discretion, provide, with
         respect to an Option or Rights granted to any individual (and either at
         the time of grant of such Option or Rights or by an amendment
         thereafter to any such outstanding Option or Rights), that the
         post-termination exercise period shall be for a period of time
         specified by the Committee which is longer than the period which would
         otherwise apply pursuant to this Section 13, but in no event beyond the
         expiration of the stated term of such Option or Rights."

         2. The provisions of this Amendment shall become effective as of July
22, 1998 and may apply to Option and Rights granted or outstanding on or after
that date, including, without limitation, outstanding Options and Rights which
were granted prior to that date.

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         3. Except to the extent hereinabove set forth, the Plan shall remain in
full force and effect.

         IN WITNESS WHEREOF, the Committee has caused this Amendment to be
executed by a duly authorized officer of the Company, and its corporate seal to
be affixed, as of the 22nd day of July, 1998.

                                            AMETEK, Inc.
                                            By: /s/ John J. Molinelli
                                                --------------------------
ATTEST:

/s/ Donna F. Winquist
----------------------
(SEAL)

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