Document:

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                                                                   Exhibit 4.3.1

                             Aerovox Incorporated
                                      And
                   ChaseMellon Shareholder Services, L.L.C.
               (as successor rights agent to Mellon Bank, N.A.)
                                as Rights Agent

                            Amendment No. 1 to the
                               Rights Agreement
                         Dated as of December 1, 1989

Amendment No. 1

         This Amendment No. 1, dated as of October 7, 1999 (this "Amendment"),
                                                                  ---------
is among Aerovox Incorporated, a Delaware corporation (the "Company"), and
                                                            -------
ChaseMellon Shareholder Services, L.L.C. (as successor rights agent to Mellon
Bank, N.A.), as Rights Agent:

         WHEREAS, pursuant to Section 27 of the Rights Agreement (as defined
below), the Company may from time to time supplement or amend the Rights
Agreement in accordance with the provisions of Section 27 thereof;

         WHEREAS, pursuant to Section 27 of the Rights Agreement, the Rights
Agent shall join with the company in the execution and delivery of any
supplement or amendment;

         WHEREAS, the Company desires to make certain amendments to the Rights
Agreement; and

         WHEREAS, the execution and delivery of the Amendment by the Company and
the Rights Agent have been in all respects duly authorized by each of them;

         Accordingly, in consideration of the premises and the mutual agreements
herein set forth, the parties hereby agree as follows:

     Rights Agreement: Definitions.  This Amendment amends the Rights
     ------------------------------
              Agreement (as in effect prior to giving effect to this Amendment,
              the "Rights Agreement"). Terms defined in the Rights Agreement as
                   ----------------
              amended hereby (the "Amended Rights Agreement") and not otherwise
                                   ------------------------
              defined herein are used with the meaning so defined.

     Amendment of Rights Agreement.  Effective upon the date hereof, the Rights
     -----------------------------
              Agreement is amended as follows:

                    2.1. Amendment of Section 21. The term "$50 million" in
                         subsection (i) of Section 21 of the Rights Agreement is
                         hereby replaced by the term "$10 million."

         3.   General. This Amendment may be executed in any number of
              counterparts, which together shall constitute one instrument, and
              shall bind and inure to the benefit of the parties and their
              respective successors and assigns. This Amendment shall be

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              governed by and construed in accordance with the laws (other than
              the conflict of law rules) of The State of Delaware.

Each of the undersigned has caused this Amendment to be executed and delivered
by its duly authorized officer as an agreement under seal as of the date first
written above.

                                  AEROVOX INCORPORATED

                                  By:    Robert D. Elliott
                                  Title: President and Chief Executive Officer

                                  CHASEMELLON SHAREHOLDER SERVICES, L.L.C.
                                  (as successor rights agent to Mellon Bank,
                                  N.A.), as Rights Agent

                                  By:    Michael A. Nespoli
                                  Title: Vice President

                                                                              27<PAGE>

                                                                   Exhibit 4.3.2

                             Aerovox Incorporated
                                      and
                    American Stock Transfer & Trust Company
                           as successor Rights Agent

                            Amendment No. 2 to the
                               Rights Agreement
                         Dated as of December 1, 1989

Amendment No. 2

         This Amendment No. 2, dated as of October 20, 1999 (this "Amendment"),
                                                                   ---------
is among Aerovox Incorporated, a Delaware corporation (the "Company"), and
                                                            -------
ChaseMellon Shareholder Services, L.L.C. (as successor rights agent to Mellon
Bank, N.A.), as Rights Agent:

         WHEREAS, pursuant to Section 21 of the Rights Agreement, the Company
removed ChaseMellon Shareholder Services (as successor rights agent to Mellon
Bank, N.A.) as Rights Agent and appointed American Stock Transfer & Trust
Company as successor Rights Agent, both effective October 13, 1999.

         WHEREAS, pursuant to Section 27 of the Rights Agreement (as defined
below), the Company may from time to time supplement or amend the Rights
Agreement in accordance with the provisions of Section 27 thereof;

         WHEREAS, the Company desires to make certain amendments to the Rights
Agreement; and

         WHEREAS, the execution and delivery of the Amendment by the Company and
the Rights Agent have been in all respects duly authorized by each of them;

         Accordingly, in consideration of the premises and the mutual agreements
herein set forth, the parties hereby agree as follows:

         1.   Rights Agreement: Definitions.  This Amendment amends the Rights
              -----------------------------
              Agreement (as in effect prior to giving effect to this Amendment,
              the "Rights Agreement"). Terms defined in the Rights Agreement as
                   ----------------
              amended hereby (the "Amended Rights Agreement") and not otherwise
                                   ------------------------
              defined herein are used with the meaning so defined.

         2.   Amendment of Rights Agreement.  Effective upon the date hereof,
              -----------------------------
              the Rights Agreement is amended as follows:

              3.1.  "Acquiring Person" shall mean any Person (as such term is
                    herein after defined) of such Person, shall be the
                    Beneficial Owner (as such term is hereinafter defined) of
                    20% or more of the Common Shares of the Company then
                    outstanding, but shall not include (i) the Company, (ii) any
                    Subsidiary (as such term is hereinafter defined) of the
                    Company, (iii) any employee

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                    benefit plan of the Company or of any Subsidiary of the
                    Company, (iv) any Person organized, appointed or established
                    by the Company or any Subsidiary of the Company pursuant to
                    the terms of any plan described in clause (iii) above or (v)
                    any Person who (A) has reported or is required to report
                    such ownership on Schedule 13G under the Securities Exchange
                    Act of 1934 (the "Exchange Act") (or any comparable or
                    successor report) or on Schedule 13D under the Exchange Act
                    (or any comparable or successor report) which Schedule 13D
                    does not state any intention to or reserve the right to
                    control or influence the management or policies of the
                    Company or engage in any of the actions specified in Item 4
                    of such Schedule (other than the disposition of the Common
                    Shares), (B) within 10 Business Days of being requested
                    (including but not limited to, by telephone or facsimile) by
                    the Company to advise it regarding the same, certifies to
                    the Company that such Person acquired Common Shares in
                    excess of 19.9% inadvertently or without knowledge of the
                    terms of the Rights, provided, however, that if the Person
                                         --------  -------
                    requested to so certify fails to do so within 10 Business
                    Days, then such Person shall become an Acquiring Person
                    immediately after such 10 Business Day Period, (C) together
                    with all of such Person's Affiliates, thereafter does not
                    acquire additional Common Shares while the Beneficial Owner
                    of 20% or more of the Common Shares then outstanding and (D)
                    if requested to do so by the Company, within a specified
                    number of Business Days (to be specified by the Company, but
                    in no case fewer than ten) following such request (including
                    but not limited to, by telephone or facsimile) from the
                    Company to such Person, reduces its Beneficial Ownership of
                    Common Shares to below 20% of the Common Shares then
                    outstanding provided, however, that if the Person requested
                                --------  -------
                    to so reduce its Beneficial Ownership fails to do so within
                    such specified number of Business Days, then such Person
                    shall become an Acquiring Person immediately after such
                    specified number of Business Days. Notwithstanding the
                    foregoing, no Person shall become an "Acquiring Person"as
                    the result of an acquisition of Common Shares by the Company
                    which, by reducing the number of shares outstanding,
                    increases the proportionate number of shares beneficially
                    owned by such Person to 20% or more of the Common Shares of
                    the Company then outstanding; provided, however, that
                                                  --------  -------
                    if a Person shall become the Beneficial Owner of 20% or more
                    of the Common Shares of the Company then outstanding by
                    reason of share purchases by the Company and shall, after
                    such share purchases by the Company, become the Beneficial
                    Owner of any additional Common Shares of the Company (other
                    than pursuant to the operation of any employee benefit plan
                    of the Company), then such Person shall be deemed to be an
                    "Acquiring Person."

               3.2. Amendment of Section 7(a). of the Rights Agreement is
                    -------------------------
                    amended to read in its entirety as follows:

                    "Section 7. Exercise of Rights; Purchase Price; Expiration
                                ----------------------------------------------
                    Date of Rights. (a) The Rights are not exercisable until the
                    --------------
                    Distribution Date. The registered holder of any Right
                    Certificate may exercise the Rights evidenced thereby

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                    (except as otherwise provided herein) in whole or in part at
                    any time on or after the Distribution Date upon surrender of
                    the Right Certificate, with the form of election to purchase
                    and certification on the reverse side thereof duly executed,
                    to the Rights Agent at the office of the Rights Agent
                    designated for such purpose, together with payment of the
                    Purchase Price for each one-hundredth of a Preferred Share
                    as to which the Rights are exercised, at or prior to the
                    earliest of (i) the close of business on December 1, 2009
                    (the "Final Expiration Date"), (ii) the time at which the
                    Rights are redeemed as provided in Section 23 hereof (the
                    "Redemption Date"), or (iii) the time at which such Rights
                    are exchanged as provided in Section 24 hereof."

     4.   General. This Amendment may be executed in any number of counterparts,
          -------
          which together shall constitute one instrument, and shall bind and
          inure to the benefit of the parties and their respective successors
          and assigns. This Amendment shall be governed by and construed in
          accordance with the laws (other than the conflict of law rules) of The
          State of Delaware.

Each of the undersigned has caused this Amendment to be executed and delivered
by its duly authorized officer as an agreement under seal as of the date first
written above.

                                   AEROVOX INCORPORATED

                                   By:     Robert D. Elliott
                                   Title:  President and Chief Executive Officer

                                   AMERICAN STOCK TRANSFER & TRUST COMPANY
                                   as successor Rights Agent

                                   By:     Herbert J. Lemmer
                                   Title:  Vice President

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