ARTICLES OF INCORPORATION

                                      OF

                         HIGH VACUUM ELECTRONICS, INC.

KNOW ALL MEN BY THESE PRESENTS:

          That we, the undersigned, have this day voluntarily associated
ourselves together for the purpose of forming a corporation under the laws of
the State of California, and for that purpose do hereby adopt Articles of
Incorporation as follows:

                                   ARTICLE I

          The name of this corporation is

                         HIGH VACUUM ELECTRONICS, INC.
                         -----------------------------

                                   ARTICLE II

          The principal office for the transaction of business of the
corporation is to be located in the County of Los Angeles, State of California.

                                  ARTICLE III

          The specific business in which the corporation proposes primarily and
initially to engage is the business of designing, engineering, manufacturing and
selling high vacuum electronics products.

          The general purposes for which the corporation is formed are as
follows:

          (a)  To engage in the business of designing, engineering, buying,
          manufacturing, using, leasing, selling, distributing and marketing,
          including acting as a distributor, wholesaler or retailer, and to
          engage in any business 

 
          related or unrelated to those purposes described above, and to engage
          in any business from time to time authorized or approved by the Board
          of Directors of this corporation.

          (b)  To carry on any other lawful business whatsoever, which the
          corporation may deem proper or convenient or capable of being carried
          on in connection with the foregoing, or otherwise, or which may be
          calculated, directly or indirectly, to promote the interests of the
          corporation or to enhance the value of its property and to have, enjoy
          and exercise all the rights, powers and privilege, which are now or
          which may hereafter be conferred upon corporations by the laws of the
          State of California, including the right to enter into partnerships
          and joint ventures and to do any and all of the things hereinbefore
          set forth as principal and agent to the same extent as natural persons
          might or could do, and in any part of the world.

                                   ARTICLE IV

          The total number of shares which the corporation is authorized to
issue is 4,000. The aggregate par value of said shares shall be One Hundred
Thousand Dollars ($100,000.00) and the par value of each share shall be Twenty
Five Dollars ($25.00).  No distinction shall exist between shares of the
corporation or the holders thereof.

                                   ARTICLE V
          (a)  The directors of the corporation shall be three (3) in number.
          This number shall constitute the Board of Directors of the corporation
          until changed by an amendment to these Articles of Incorporation or by
          an amendment to the By-Laws of the corporation duly adopted by the
          shareholders. Authority is hereby 

 
          given for the adoption by the shareholders of a provision in the By-
          Laws concerning the number of directors of the corporation and changes
          therein.

          (b)  The names and addresses of the persons who are appointed to act
          as the first directors are:

               Name of Director                 Address
               ----------------                 -------

               Harry B. Boller          1300 Milan Avenue
                                        South Pasadena, California

               Clyde C. Chivens         2273 Queensbury Road
                                        Pasadena, California

               Foster H. Campbell       1217 Linda Vista
                                        Pasadena, California

                                  ARTICLE VI

          The directors shall adopt By-Laws which shall remain in effect until
the same or other By-Laws are adopted by the shareholders of the corporation.

          IN WITNESS WHEREOF, we, the undersigned, constituting the
incorporators of the corporation and the persons above-named as the first
directors of the corporation, have executed these Articles of Incorporation on
this 7th day of February, 1964.

                              __________________________________
                              Harry B. Roller


                              __________________________________
                              Clyde C. Chivens


                              __________________________________
                              Foster H. Campbell

 
STATE OF CALIFORNIA

COUNTY OF LOS ANGELES

          On _____________________, 1964, before me, __________________, a
Notary Public in and for said County and State, personally appeared Harry B.
Boller, Clyde C. Chivens and Foster H. Campbell, known to me to be the persons
whose names are subscribed to the foregoing Articles of Incorporation, and
acknowledged to me that they executed the same.

          WITNESS my hand and official seal.

                              _____________________________________
                              Notary Public in and for said County and State

 
                  CERTIFICATE OF DETERMINATION OF PREFERENCES

                PREFERRED STOCK OF HIGH VACUUM ELECTRONICS, INC.

F. H. Campbell and Marge E. Casten certify that:

          1.   They are the President and the Assistant Secretary, respectively,
of HIGH VACUUM ELECTRONICS, INC., a California corporation.
   -----------------------------                           

          2.   The By-Laws of said corporation authorize the directors to adopt
any resolutions by unanimous written consent without a meeting.  Pursuant to
authority conferred upon the Board of Directors of said corporation by its
Articles of Incorporation and pursuant to the provisions of Section 1102 of the
California Corporations Code, by unanimous written consent of the Board of
Directors of said corporation dated December 3, 1969, the following resolution
was adopted:

               "RESOLVED, that this Board of Directors does hereby provide for
the issue of an initial series of Preferred Stock of this corporation and does
hereby fix and determine the rights, preferences, restrictions and other matters
relating to said initial series of Preferred Stock as follows:

               1.   Designation and Number of Shares:  This initial series of
                    --------------------------------                         
     Preferred Stock shall be designated and known as the 4% Cumulative
     Convertible Preferred Series, $100 par value (the "4% Preferred Series"),
     and the number of shares constituting the 4% Preferred Series shall be 750
     shares.

               2.   Dividend Rights.  The holders of the outstanding shares of
                    ---------------                                           
     the 4% Preferred Series shall be entitled to receive when and as declared
     by the Board of Directors, out of funds legally available therefor,
     dividends at the rate of four percent

 
     (4%) per annum of the par value thereof, and no more, payable in cash
     quarterly to the shareholders of record on the fifteenth day of each
     February, May, August and November in each year. Such dividends shall
     accrue on each share from the date of its original issuance and shall
     accrue from day to day, whether or not earned or declared. Such dividends
     shall be cumulative so that if such dividends in respect of any previous
     quarterly dividend period and for the current quarterly dividend period at
     the rate of four percent (4%) per annum shall not have been paid on or
     declared and set apart for shares of the 4% Preferred Series at the time
     outstanding, the deficiency shall be fully paid on or declared and set
     apart for such shares before any dividend or other distribution shall be
     paid on or declared or set apart for the Common Stock of this corporation.

               3.   Liquidation Preference.  In the event of a voluntary or 
                    ----------------------                                 
     involuntary liquidation, dissolution or winding up of this corporation,
     each holder of a share of the 4% Preferred Series shall be entitled to
     receive out of the assets of this corporation, whether such assets are
     capital or surplus of any nature, an amount equal to $100 per share and any
     accrued and unpaid dividends, and no more, before any payment shall be made
     or any assets distributed to the holders of the Common Stock of this
     corporation.

               If upon such liquidation, dissolution or winding up, whether
     voluntary or involuntary, the assets available for such distribution among
     the holders of the 4% Preferred Series shall be insufficient to permit the
     payment to such holders of the full preferential amounts aforesaid, then
     the entire assets of this corporation to be distributed shall be
     distributed ratably among such holders on the basis of their respective
     ownership of shares of the 4% Preferred Series.

 
               A consolidation or merger of this corporation with or into any
     other corporation or corporations, or a sale of all or substantially all of
     the assets of this corporation, shall not be deemed to be a liquidation,
     dissolution or winding up within the meaning of this paragraph.

               4.   Voting Rights.  The holders of shares of the 4% Preferred
                    -------------                                            
     Series shall be entitled to cast one vote for each share held for the
     election of directors and on all other matters to be voted on by the
     shareholders of this corporation.

               5.   Conversion Rights.  The 4% Preferred Series shall be
                    -----------------                                   
     convertible, at the option of the respective holders thereof, into shares
     of the $.10 par value Common Stock of this corporation from and after such
     time as the Securities and Exchange Commission declares effective a
     Registration Statement of this corporation filed pursuant to the Securities
     Act of 1933 for the purpose of offering such Common Stock for sale to the
     public through and underwriter.  From and after such time as the Securities
     and Exchange Commission declares effective such a Registration Statement,
     each share of the 4% Preferred Series shall be convertible into a number of
     shares of $.10 par value Common Stock of this corporation determined by
     dividing into $100 the price per share at which such Common Stock is
     initially offered by the underwriter to the public.  At such time as this
     corporation files with the Securities and Exchange Commission a
     Registration Statement for the purpose of offering such Common Stock to the
     public through an underwriter, notice of such filing, by mail, postage
     prepaid, shall be given to the holders of record of the 4% Preferred
     Series, such notice to be addressed to each such shareholder at his post
     office address shown by the records of this corporation.

 
               6.   Sinking Fund.  On or before August 1, 1979, this corporation
                    ------------                                                
     shall create with funds of the corporation a sinking fund (the "Fund") for
     the purchase or redemption of the 4% Preferred Series.  The amount of the
     Fund shall be equal to the amount sufficient to redeem all the shares of 4%
     Preferred Series then outstanding (the amount of the Fund is sometimes
     referred to as the "Redemption Amount").  In the event sufficient funds are
     not available on or before August 1, 1979 to purchase or redeem all of the
     outstanding shares of the 4% Preferred Series, additional funds of the
     corporation shall be set aside in the Fund, as such funds become available,
     until all the outstanding share of the 4% Preferred Series shall have been
     purchased or redeemed.  The Fund shall be applied in accordance with the
     provisions of paragraph 7 below and shall continue in existence until such
     time as all shares of the 4% Preferred Series shall have been redeemed or
     purchased by the corporation or converted into shares of Common Stock, at
     which time the Fund shall terminate and all sums remaining in the Fund
     shall become part of the general funds of the corporation.

               7.   Redemption Rights.  On September 1, 1979, this corporation
                    -----------------                                         
     shall, to the extent the Redemption Amount is legally available therefor,
     redeem all the then outstanding shares of the 4% Preferred Series (or such
     lesser number as may be legally permitted) by paying in cash therefor, upon
     surrender of such shares, $100 for each share so redeemed, plus an amount
     equal to all dividends on the 4% Preferred Series, unpaid and accumulated
     as provided for above, to and including the date fixed for redemption. If
     such redemption involves less than all of the outstanding shares of 4%
     Preferred Series, the Board of Directors shall determine the specific
     shares to be redeemed by lot or pro-rata, as deemed appropriate by the
     Board of Directors.

 
               On August 1, 1979, this corporation shall mail, postage prepaid,
     written notice to the holders of record of the 4% Preferred Series to be
     redeemed, and each holder of shares of 4% Preferred Series to be so
     redeemed shall surrender the certificates evidencing such shares to the
     corporation at the place designated in such notice and shall thereupon be
     entitled to receive such cash payment.  If such notice of redemption shall
     have been duly given and if on September 1, 1979 the Redemption Amount is
     legally available for such redemption, all rights with respect to all
     shares of 4% Preferred Series noticed for redemption shall cease,
     notwithstanding the failure to surrender any certificates therefor, except
     the right to receive such cash payment, without interest, upon surrender of
     the certificates evidencing such shares.  If less than all of the
     outstanding shares of 4% Preferred Series shall have been purchased or
     redeemed by the corporation on or before September 1, 1979 by reason of the
     Redemption Amount being insufficient or legally unavailable to purchase or
     redeem all such shares, the corporation shall, on January 1, 1980, and
     subsequently on the first day of July and January of each succeeding year
     until such time as all outstanding shares of 4% Preferred Series shall have
     been redeemed or purchased by the corporation or converted into shares of
     Common Stock of the corporation, apply the entire amount of the Fund
     legally available therefor to the purchase or redemption of outstanding
     shares of 4% Preferred Series."

          3.   The authorized number of shares of Preferred Stock of this
corporation is 5,000 shares constituting the 4% Cumulative Convertible Preferred
Series, $100 par value, which this corporation is authorized to issue is 750
shares, and none of such shares has been issued.

          Executed this 4th day of December, 1969, at Santa Barbara, California.

 
                              _________________________________________
                              F. H. Campbell, President


                              _________________________________________
                              Margie E. Casten, Assistant Secretary

                              VERIFICATION

          F. H. Campbell and Margie E. Casten each declare under penalty of
perjury that they are the President and Assistant Secretary, respectively, of
High Vacuum Electronics, Inc., a California corporation, and that the matters
set forth in the foregoing Certificate of Determination are true and correct.

          Executed at Santa Barbara, California, on December 4, 1969.


                              _________________________________________
                              F. H. Campbell, President


                              _________________________________________
                              Margie E. Casten, Assistant Secretary
 

 
                           CERTIFICATE OF AMENDMENT
                                      OF
          ARTICLES OF INCORPORATION OF HIGH VACUUM ELECTRONICS, INC.

F. H. Campbell and Margie E. Casten certify that:

          1.   They are the President and the Assistant Secretary, respectively
of HIGH VACUUM ELECTRONICS, INC., a California corporation.

          2.   The By-Laws of said corporation authorize the directors to amend
the Articles of Incorporation of said corporation by unanimous written consent;
by unanimous written consent of the Board of Directors of said corporation dated
December 3, 1969, the following resolutions were adopted:

               "RESOLVED:  That Article I of the Articles of Incorporation of
this corporation be amended to read as follows:

               `The name of this corporation is KILOVAC CORPORATION.'"

               "RESOLVED FURTHER:  That Article IV of the Articles of
Incorporation of this corporation be amended to read as follows:

               `This corporation is authorized to issue two classes of stock
          which shall be designed Preferred Stock and Common Stock,
          respectively. The total number of shares which this corporation is
          authorized to issue is 305,000 shares of two classes, consisting of
          300,000 shares of Common Stock without series and with a par value of
          $.10 per share, and 5,000 shares of Preferred Stock, $100 par value.

 
          The aggregate par value of all shares of stock that are to have a par
          value shall be $530,000.

               `Upon the amendment of this Article IV to read as herein set
          forth, each outstanding share of a par value of $25.00 is hereby
          classified and converted into 500 shares of Common Stock of a par
          value of $.10 per share.

               `The shares of Preferred Stock may be issued from time to time in
          one or more series. The Board of Directors of the corporation may, in
          their unlimited and unrestricted discretion, fix or alter the dividend
          rights, dividend rate, conversion rights, voting rights, rights and
          terms of redemption (including sinking fund provisions), the
          redemption price or prices and the liquidation preferences of any
          wholly unissued series of shares of Preferred Stock and the number of
          shares constituting any series and the designations of such series;
          and increase or decrease the number of shares of any series subsequent
          to the issue of shares of that series, but not below the number of
          shares of such series then outstanding. Incase the number of shares of
          any series shall be so decreased, the shares constituting such
          decrease shall resume the status which they had prior to the
          resolution originally fixing the number of such series.'"

          3.   The shareholders have adopted said amendment by unanimous written
consent. The wording of the amended article, as set forth in the shareholders'
written consent, is the same as that set forth in the directors' resolution in
paragraph 2 above.

 
          4.   The total number of shares represented by written consent is 200,
the total number of shares entitled to vote on or consent to the amendment is
200.

                              ______________________________________
                              F. H. Campbell, President


                              ______________________________________
                              Margie E. Casten, Assistant Secretary

                              VERIFICATION

          Each of the undersigned declares under penalty of perjury that the
matters set forth in the foregoing certificate are true and correct.  Executed
at Santa Barbara, California, on December 4, 1969.

                              _____________________________________


                              _____________________________________

 
                           CERTIFICATE OF OWNERSHIP
                              KILOVAC CORPORATION

          KILOVAC CORPORATION, a California corporation, does hereby certify
that:
          1.   Kilovac Corporation owns all of the issued and outstanding shares
of the capital stock of Penta Laboratories, Inc., a California corporation.

          2.   By a Written Consent to Action, dated May 5, 1970, executed by
each member of the Board of Directors of Kilovac Corporation pursuant to the
Corporations Code of the State of California and the By-Laws of said
corporation, the following resolutions were adopted:

               "WHEREAS, this corporation owns all of the issued and outstanding
          shares of the capital stock of Penta Laboratories, Inc.; and

               "WHEREAS, it is deemed to be in the best interests of this
          corporation and its shareholders that Penta Laboratories, Inc. be
          merged into this corporation;

               "NOW, THEREFORE, BE IT RESOLVED, that this corporation merge
          Penta Laboratories, Inc., its wholly owned subsidiary, into itself and
          assume all of the obligations of said subsidiary pursuant to Section
          4124 of the Corporations Code of California; and

               "RESOLVED FURTHER, that the President and the Secretary of an
          Assistant Secretary of this corporation be and they hereby are
          authorized and directed to execute and file a Certificate of Ownership
          pursuant to Section 4124 of the Corporations Code of California, and
          to do any and all things and to execute any and all documents which
          they consider necessary and proper in order to consummate said merger.

 
          IN WITNESS WHEREOF, Kilovac Corporation has executed this Certificate
this 14th day of January, 1971.

                                   KILOVAC CORPORATION



                                   By   _______________________________________
                                        Foster H. Campbell, President


                                   By   _______________________________________
                                        Margie E. Casten, Assistant Secretary

          Each of the undersigned declares under penalty of perjury that the
matters set forth in the foregoing Certificate are true and correct.

          Executed at Santa Barbara, California, January 14th, 1971.

                                        _______________________________________
                                        Foster H. Campbell, President


                                        _______________________________________
                                        Margie E. Casten, Assistant Secretary

 
                           CERTIFICATE OF OWNERSHIP
                              KILOVAC CORPORATION

          KILOVAC CORPORATION, a California corporation, does hereby certify
that:
          1.   Kilovac Corporation owns all of the issued and outstanding shares
of the capital stock of Penta Laboratories, Inc., a California corporation.

          2.   By a Written Consent to Action, dated May 5, 1970, executed by
each member of the Board of Directors of Kilovac Corporation pursuant to the
Corporations Code of the State of California and the By-Laws of said
corporation, the following resolutions were adopted:

               "WHEREAS, this corporation owns all of the issued and outstanding
          shares of the capital stock of Penta Laboratories, Inc.; and

               "WHEREAS, it is deemed to be in the best interests of this
          corporation and its shareholders that Penta Laboratories, Inc. be
          merged into this corporation;

               "NOW, THEREFORE, BE IT RESOLVED, that this corporation merge
          Penta Laboratories, Inc., its wholly owned subsidiary, into itself and
          assume all of the obligations of said subsidiary pursuant to Section
          4124 of the Corporations Code of California; and

               "RESOLVED FURTHER, that the President and the Secretary of an
          Assistant Secretary of this corporation be and they hereby are
          authorized and directed to execute and file a Certificate of Ownership
          pursuant to Section 4124 of the Corporations Code of California, and
          to do any and all things and to execute any and all documents which
          they consider necessary and proper in order to consummate said merger.

 
          IN WITNESS WHEREOF, Kilovac Corporation has executed this Certificate
this 14th day of January, 1971.

                                   KILOVAC CORPORATION



                                   By   _______________________________________
                                        Foster H. Campbell, President


                                   By   _______________________________________
                                        Margie E. Casten, Assistant Secretary

          Each of the undersigned declares under penalty of perjury that the
matters set forth in the foregoing Certificate are true and correct.

          Executed at Santa Barbara, California, January 14th, 1971.

                                        _______________________________________
                                        Foster H. Campbell, President


                                        _______________________________________
                                        Margie E. Casten, Assistant Secretary
 

 
                  CERTIFICATE OF DETERMINATION OF PREFERENCES
                                       OF
                     PREFERRED STOCK OF KILOVAC CORPORATION


F. H. Campbell and Margie E. Casten certify that:

          1.   They are the President and the Assistant Secretary, respectively,
of KILOVAC CORPORATION, a California corporation.

          2.   The Articles of Incorporation of said corporation, as amended,
authorize the issuance of 5,000 shares of preferred stock, par value $100 per
share, from time to time, in one or more series, and authorize the Board of
Directors by resolution to fix the rights, privileges and preferences thereof
and the number of shares constituting any unissued series of preferred stock and
the designation of such series, and that pursuant thereto the Board of Directors
of said corporation, at a meeting duly held on January 31, 1971, in Santa
Barbara, California, at which meeting a quorum was present and acting
throughout, did duly adopt the following resolution:

               "RESOLVED, that this Board of Directors does hereby provide for
the issuance of an additional series of Preferred Stock of this corporation and
does hereby fix and determine the rights, preferences, restrictions and other
matters relating to said additional series of Preferred Stock as follows:

          1.   Designation and Number of Shares.  This series of Preferred Stock
               --------------------------------                                 
shall be designated and known as the 7% Class C Convertible Preferred Stock,
$100 par value (the "Class C Stock"), and the number of shares constituting the
Class C Stock shall be 1,000 shares.

          2.   Class C Stock Dividends.  The holders of Class C Stock shall be
               -----------------------                                        
entitled to receive dividends at the rate of 7% per annum on the par value
thereof, payable in cash.  Dividend payments shall be made quarterly on March
31, June 30, September 30 and December 31 of each 

 
year, or at such lesser intervals as the Board of Directors may from time to
time determine. Such dividends shall accrue from the date of issuance of the
respective shares of Class C Stock and shall be deemed to accrued from day to
day whether or not earned or declared. Such dividends shall be payable before
any dividends shall be declared or paid or set apart for the Common Stock, and
shall be cumulative so that if in any year or years dividends upon the
outstanding Class C Stock at the rate of 7% per annum of the par value thereof
shall not have been paid thereon or set apart therefor, the amount of the
deficiency shall be fully paid or declared and set apart for payment, but
without interest, before any distribution, whether by way of dividend or
otherwise, shall be declared or paid upon or set apart for the Common Stock.

          3.   Liquidation Preferences.
               ----------------------- 
               (a) In the event of a voluntary or involuntary liquidation,
     dissolution or winding up of this corporation, the holders of Class C Stock
     shall be entitled to receive out of the assets of this corporation, whether
     such assets are capital or surplus of any nature, an amount equal to the
     par value of the Class C Stock; and, in addition to such amount, a further
     amount equal to the dividends unpaid and accumulated thereon, as provided
     in Section 2 above to the date of such distribution, whether earned or
     declared, or not, all on a parity with the shares of the Company's 4%
     Preferred Series then outstanding and with the shares of any other series
     of Preferred Stock that by its terms is entitled to participate on a parity
     with the 4% Preferred Series.

               (b) If upon such liquidation, dissolution or winding up, whether
     voluntary or involuntary, the assets thus distributed among the holders of
     the Class C Stock shall be insufficient to permit the payment to such
     shareholders of the full preferential amounts 

                                      -2-

 
     aforesaid, then the entire assets of this corporation to be distributed
     shall be distributed ratably among the holders of the 4% Preferred Series,
     the Class C Stock and any other series of Preferred Stock that by its terms
     is to share in such distribution with the 4% Preferred Series.

               (c) A consolidation or merger of this corporation with or into
     any other corporation or corporations shall not be deemed to be a
     liquidation, dissolution or winding up within the meaning of this
     paragraph.

          4.   Voting Rights.  Except as otherwise provided hereinafter, the
               -------------                                                
holders of the shares of Class C Stock shall be entitled to one vote per share
and to vote on all matters on which holders of common stock of the Corporation
are entitled to vote.  If, however:  (i) all quarterly dividends cumulated on
the Class C Stock as of March 31, 1973, shall not have been paid in full by
April 15, 1973; or (ii) any cumulated dividends payable on the Class C Stock for
any year subsequent to March 31,1973 shall not have been paid in full as of
April 15 of any year subsequent to 1973; or (iii) the corporation shall fail to
create a Sinking Fund at the times and to the extent provided for in Section 6
hereof; or (iv) the corporation issues any further shares of Class C Stock
(except as provided in Section 8 hereof) or declares a dividend on its Common
Stock without the prior written consent of the holders of the Class C Stock; or
(v) the holders of any class of stock of the corporation (other than common
stock) are entitled, pursuant to the terms of the instrument creating such
class, to elect a majority of the Board of Directors, then the holders of the
Class C Stock as a class shall be entitled to elect one director to the Board of
Directors (subject only to the prior right of the corporation's Class B Stock to
elect two-thirds of the members thereof in such events) until all defaults
giving rise to the special voting rights of the holders of Class C Stock have

                                      -3-

 
been cured or waived, at which time the voting rights shall revert to their
status prior to the occurrence of such defaults. Any officer, director, or
shareholder may call a special meeting of all shareholders of the corporation in
the manner prescribed in the By-Laws for the purpose of electing a director
pursuant to this Section, and for such purpose shall have access to the records
of the corporation upon such defaults. Upon restoration of full voting rights to
their previous status, the term of the director elected by the holders of the
Class C Stock shall expire and a special meeting of all shareholders may be
called to elect a number of directors sufficient to fill all existing positions,
or the Board of Directors, if permitted by the By-Laws, may fill such vacancy.

          5.   Redemption.  The corporation may at any time, at the option of
               ----------                                                    
the Board of Directors, redeem the whole or from time to time any part of the
Class C Stock, by paying in cash for each share an amount equal to the par value
of each share plus an amount equal to all dividends accrued, unpaid and
accumulated thereon as provided in Section 2 hereof to and including the date
fixed for redemption, the total of such amounts being hereinafter referred to as
the "redemption price".  Should only a part of the Class C Stock outstanding be
redeemed, such redemption shall be effected by lot as prescribed by the Board of
Directors or pro rata.  No Class C Stock may be redeemed unless all accrued
dividends as provided for in Section 2 hereof on all outstanding shares of Class
C Stock shall have been paid for all past dividend periods and full dividends as
provided for in Section 2 hereof for the current period declared upon all Class
C Stock, except the shares to be redeemed.  At least sixty (60) days prior
notice by mail, postage prepaid, shall be given to each holder of record of the
shares of Class C Stock to be redeemed, at his last known address shown on the
records of the corporation.  On or before the date fixed for redemption, each
holder of Class C Stock called for redemption shall, unless he shall have
previously exercised his option to convert 

                                      -4-

 
his Class C Stock as provided in Section 7 hereof, surrender his certificate for
such shares to the corporation at the place designated in the notice of
redemption and shall thereupon be entitled to receive payment of the redemption
price. In case less than all the shares represented by any such surrendered
certificate are redeemed, a new certificate shall be issued representing the
unredeemed shares. If such redemption notice shall have been duly given and if
on the date fixed for redemption, funds necessary for the redemption shall be
legally available therefor, then all rights with respect to such shares so
called for redemption, whether or not surrendered, shall terminate except for
the right of interest upon surrender of such certificates therefor to the date
fixed for redemption.

          6.   Sinking Fund.
               ------------ 
               (a) On or before March 31, 1982 the corporation shall create from
     the net earnings of the corporation for any preceding fiscal year or years,
     after full payment or provision of repayment of dividends on the Class C
     Stock and all other shares of the corporation ranking prior to or on a
     parity with the Class C Stock for all prior fiscal years through the end of
     the last preceding dividend period for such shares, as a sinking fund for
     the purchase or redemption of the Class C Stock (hereinafter called the
     "Sinking Fund"), cash, bonds or other certificates of indebtedness of the
     United States of America or corporate bonds, rated A or better by any of
     the standard bond rating services and listed on the New York Stock
     Exchange, in a sum equal to 33-1/3% of the par value of the total number of
     shares of Class C Stock originally outstanding.  On or before each of March
     31, 1983 and March 31, 1984, the corporation shall add to the Sinking Fund,
     from net earnings as aforesaid, an additional sum in each case equal to 33-
     13/% of the par value of the total number of shares of Class C Stock
     originally outstanding.  if on any March 31 referred to 

                                      -5-

 
     above the net earnings after such payment or provision for payment of
     dividends shall be insufficient to discharge the applicable Sinking Fund
     requirement in full, then the net earnings shall be set aside for the
     Sinking Fund. The Sinking Fund requirements shall be cumulative so that if
     for any year or years the requirements shall not be fully discharged the
     net earnings, after payment or provisions for dividends, for each fiscal
     year thereafter shall be applied thereto until the requirements are fully
     discharged.

               (b) On or before June 30 in each of the years 1982, 1983 and
     1984, respectively, the cash or bonds in the Sinking Fund as of such date
     shall be used to acquire one-third of the total number of shares of Class C
     Stock originally outstanding to the extent of the amount then in the
     Sinking Fund, by purchase, at a price or prices not exceeding the par value
     thereof, or by redemption, at the par value thereof, in the manner provided
     in Section 5 hereof, in each case plus accrued dividends thereon to the
     date of such purchase or redemption which shall be paid from the general
     funds of the corporation and not from the Sinking Fund, or by both such
     purchase and such redemption.  Upon retirement of all Class C Stock, any
     cash or bonds remaining in the Sinking Fund in excess of that required to
     complete payment for any shares purchased or agreed to be purchased, or to
     redeem shares called for redemption through the operation of the Sinking
     Fund, shall become a part of the general funds of the corporation.

          7.   Conversion Rights.
               ----------------- 
               (a) The holder of any share or shares of Class C Stock shall have
     the right, at this option, at any time after December 31, 1971, subject to
     the terms and provisions of this Section 7, to convert any such share or
     shares of Class C Stock (valuing each Class C 

                                      -6-

 
     share at $100 for the purpose of such conversion) into shares of Common
     Stock of the corporation, initially at the price of $3.354 per share of
     Common Stock, or in case an adjustment of such amount has taken place
     pursuant to the provisions of this Section 7 hereof, then at the amount as
     last adjusted (said initial or adjusted price being referred to herein as
     the "conversion price"), upon surrender of the certificate or certificates
     for such share or shares of Class C Stock to the corporation at any time
     during usual business hours at the office of the corporation or at the
     office of any transfer agent for the shares of Class C Stock or at such
     other place, if any, as the Board of Directors shall determine, together
     with written notice (hereinafter referred to as the "conversion notice"),
     that the holder elects to convert such share or shares of Class C Stock
     into Common Stock in accordance with the provisions hereof, and specifying
     the name or names in which the shares of stock issuable upon such
     conversion shall be registered, together with the addresses of the persons
     so named, and accompanied by a written instrument or instruments of
     transfer in form satisfactory to the corporation duly executed by the
     holder or his attorney duly authorized in writing. In the event the names
     so specified are different from the name of the registered holder of the
     Class C Stock so converted, the holder shall also furnish the corporation
     with evidence satisfactory to it that registration of such shares is not
     required under the Securities Act of 1933, as then in effect, and, if the
     corporation's counsel shall advise it to do so, the corporation shall have
     the right to place on the certificates evidencing such shares an
     appropriate legend restricting the transfer thereof.

               (b) As promptly as practicable after the surrender, as herein
     provided, of any certificate or certificates for such share or shares of
     Class C Stock for conversion, and 

                                      -7-

 
     the receipt of the conversion notice relating thereto, the corporation
     shall deliver or cause to be delivered at said office to or upon the
     written order of the person for whose account such share or shares of Class
     C Stock were so surrendered, certificates representing the number of fully-
     paid and non-assessable shares of Common Stock of the corporation to which
     he shall be entitled, imprinted with a legend restricting the transfer
     thereof, if appropriate, together with a cash adjustment for any fraction
     of a share as hereinafter stated if not evenly convertible plus all
     dividends accrued and unpaid thereon to the date of conversion. Subject to
     the following provisions of this paragraph 7 hereof, such conversion shall
     be deemed to have been made at the close of business on the date of such
     surrender of the share or shares of Class C Stock to be converted and the
     person or persons entitled to receive the shares of Common Stock upon
     conversion of such share of Class C Stock shall be treated for all purposes
     as having become the record holder or holders of such shares of Common
     Stock at such time and such conversion shall be at the conversion price in
     effect at such time.

               (c) Adjustments to conversion price shall be made as follows:

               (i) Subject to the exceptions referred to below, in case the
          corporation shall at any time or from time to time after the date
          hereof issue any additional shares of Common Stock for a consideration
          per share less than the conversion price in effect immediately prior
          to the issuance of such additional shares, or without consideration,
          then, and thereafter successively upon each such issuance, the
          conversion price in effect immediately prior to the issuance of such
          additional shares shall forthwith be reduced to a price determined by
          dividing an amount equal to 

                                      -8-

 
          (x) the total number of shares of Common Stock outstanding immediately
          prior to such issuance, multiplied by the conversion price in effect
          immediately prior to such issuance, plus (y) the consideration, if
          any, received by the corporation upon such issuance, by the total
          number of shares of common stock outstanding immediately after the
          issuance of such additional shares.

               For the purposes of any adjustment as provided in this Section
          7(c), the following provisions shall also be applicable:

                    (A) In case of the issuance of additional shares of Common
          Stock solely for cash, the consideration received by the corporation
          therefor shall be deemed to be the net cash proceeds received by the
          corporation for such shares before deducting any commissions or other
          expenses paid or incurred by the corporation for any underwriting of,
          or otherwise in connection with, the issuance of such shares.

                    (B) In case of the issuance by the corporation of (i) any
          security that is convertible into shares of Common Stock of the
          corporation (other than the Class C Stock, the corporation's 7% Class
          B Convertible Preferred Stock and any other shares of convertible
          preferred stock outstanding on March 1, 1971, or (ii) any rights or
          options to purchase shares of Common Stock of the corporation (except
          as stated below), the corporation shall be deemed to have issued the
          maximum number of shares of Common Stock into which such convertible
          security may be converted, or the maximum number of shares of Common
          Stock deliverable upon the exercise of such rights or options, for the
          consideration received by the corporation for such 

                                      -9-

 
          convertible securities or for such rights or options, as the case may
          be, before deducting any commissions or other expenses paid or
          incurred by the corporation for any underwriting of, or otherwise in
          connection with, the issuance of such convertible security or rights
          or options plus (i) any consideration or adjustment payment to be
          received by the corporation in connection with such conversion, or
          (ii) the minimum aggregate price at which shares of Common Stock of
          the corporation are to be delivered upon the exercise of such rights
          or options or, if no minimum price is specified and such shares are to
          be delivered at an option price related to the market value of the
          subject shares, an aggregate option price bearing the same relation to
          the market value of the subject shares at the time such rights or
          options were granted; provided that as to such options such further
          adjustments as shall be necessary on the basis of the actual option
          price at the time of exercise shall be made at such time if the actual
          option price is less than the aforesaid assumed option price. No
          further adjustment of the conversion price shall be made as a result
          of the actual issuance of shares of Common Stock of the corporation
          referred to in this Clause (B). On the expiration of such rights or
          options, or the termination of such right to convert, the conversion
          price hereunder shall be readjusted to such conversion price as would
          have obtained had the adjustments made upon the issuance of such
          rights, options, or convertible securities been made upon the basis of
          the delivery of only the number of shares of Common Stock actually
          delivered upon the exercise of such rights or options or upon the
          conversion of any such securities.

                                     -10-

 
                    (C) The consideration for any additional shares of Common
          Stock (or securities convertible into Common Stock) issued as a stock
          dividend shall be deemed to be nothing.

                    (D) In the event that any shares of Common Stock or any
          warrants, rights or options to purchase any shares of Common Stock or
          any securities convertible into or exchangeable for shares of Common
          Stock shall be issued by the corporation for a consideration only a
          portion of which is cash or none of which is cash, the Board of
          Directors of the corporation shall determine the fair value of such
          consideration other than cash and the shares, warrants, rights,
          options or convertible or exchangeable securities shall be deemed to
          be issued for an amount of cash equal to the cash portion of the
          consideration, if any, plus the value so determined by the Board of
          Directors.

                    (E) The number of shares of stock of any class at the time
          outstanding shall include all shares of stock of that class then owned
          or held by or for the account of the corporation and shall include the
          aggregate number of shares deliverable in respect of the convertible
          securities, rights and options referred to in Clause (B) of this
          Section 7; provided that to the extent that such options, rights or
          conversion privileges are not exercised, such shares shall be deemed
          to be outstanding only until the expiration dates of the rights,
          options or conversion privileges or the prior cancellation thereof.

               If at any time or from time to time the corporation  shall by
          subdivision, consolidation or reclassification of shares, or
          otherwise, change as a whole, the 

                                     -11-

 
          outstanding shares of Common Stock into a different number or class of
          shares, the outstanding shares issuable upon conversion of each share
          of Class C Stock and the conversion price per share shall be
          proportionately and correspondingly adjusted.

               Irrespective of any adjustments or changes in the conversion
          price, the shares of Class C Stock heretofore and hereafter issued
          shall continue to express the conversion price per share when
          initially issued.

               No adjustment of the conversion price shall be made as a result
          of or in connection with the issuance of shares of Common Stock (or
          securities convertible into Common Stock) pursuant to (i) restricted
          or qualified stock options outstanding on November 30, 1970, or
          pursuant to stock options intended to qualify as restricted or
          qualified stock options as defined in Sections 422 or 424 of the
          Internal Revenue Code (or successor provisions), assumed or granted by
          the Corporation after November 30, 1970, (ii) the conversion of the
          Class C Stock, or (iii) the conversion of convertible securities
          outstanding on March 1, 1971, or issued pursuant to an agreement
          between the corporation and the former shareholders of Penta
          Laboratories, Inc. (the "Penta Shareholders"), dated August 1, 1969,
          as amended by letter agreements dated August 1, 1969 and December 4,
          1969 (the "Penta Agreements").

               Whenever the conversion price is adjusted as provided in this
          Section 7(c), the corporation will promptly obtain a certificate of a
          firm of independent public accountants of recognized standing selected
          by the Board of Directors (who may be regular auditors of the
          corporation) setting forth the conversion price and shares as 

                                     -12-

 
          so adjusted and a brief statement of the facts accounting for such
          adjustment, and will promptly file the same with the Secretary of the
          corporation and will cause to be mailed a brief summary thereof to the
          registered holders of the Class C Stock at their last addresses as
          they appear on the registry books of the corporation.

               (ii)   If, prior to the redemption or repurchase in full or
          conversion in full of the Class C Stock, the corporation shall at any
          time consolidate with or merge into another corporation, the holder of
          each share of Class C Stock will thereafter receive, upon the
          conversion thereof, the securities or property to which a holder of
          the number of shares of Common Stock then issuable upon the conversion
          of such Class C Stock would have been entitled upon such consolidation
          or merger, and the corporation shall take such steps in connection
          with such consolidation or merger as may be necessary to assure that
          the provisions of the Class C Stock shall thereafter be applicable, as
          nearly as reasonably may be, in relation to any securities or property
          thereafter issuable upon the conversion of the Class C Stock.  A sale
          of all or substantially all the assets of the corporation for a
          consideration (apart from the assumption of obligations) consisting
          principally of securities shall be deemed a consolidation or merger
          for the foregoing purposes.

               (iii)  No fractional shares shall be issued upon the conversion
          of any shares of Class C Stock, but in lieu thereof the corporation
          shall pay therefor in cash in proportion to the conversion price.

                                     -13-

 
               (iv) In case:

                    (a) The corporation shall declare a dividend on Common Stock
          payable otherwise than in cash out of its earned surplus or payable in
          Common Stock; or

                    (b) The corporation shall authorize the granting to the
          holders of Common Stock of rights to subscribe for or purchase any
          shares of capital stock of any class or of any other rights; or

                    (c) of any reclassification of the Common Stock (other than
          a subdivision or combination of outstanding shares of Common Stock),
          or of any consolidation or merger to which the corporation is a party
          and for which approval of any shareholders of the corporation is
          required, or the sale or transfer of all or substantially all of the
          assets of the Company; or

                    (d) of the voluntary or involuntary dissolution, liquidation
          or winding up of the corporation; then the corporation shall cause to
          be mailed to the registered holders of the Class C Stock, first class,
          postage prepaid, at least 30 days prior to the applicable record date
          hereinafter specified, a notice summarizing such action or event and
          stating the record date for any such dividend or rights, or, if a
          record is not to be taken, the date as of which the holders of Common
          Stock of record to be entitled to such dividend or rights are to be
          determined, the date on which any such reclassification, or
          consolidation, merger, sale, transfer, dissolution, liquidation or
          winding up is expected to become effective, and the date as of which
          it is expected the holders of Common Stock of record shall be entitled
          to effect any 

                                     -14-

 
          exchange of their shares of Common Stock for securities or other
          property deliverable upon any such reclassification, consolidation,
          merger, sale, transfer, dissolution, liquidation or winding up.

               (v)  The issuance of certificate for shares of Common Stock upon
          the conversion of shares of Class C Stock shall be made without charge
          to the converting Class C Stock shareholders for any tax in respect to
          the issuance of such certificates, and such certificates shall be
          issued in the respective names of, or in such names as may be directed
          by, the holders of the shares of Class C Stock converted; provided,
          however, that (a) the corporation shall not be required to pay any tax
          which may be payable in respect of any transfer involved in the
          issuance and delivery of any such certificate in a name other than
          that of the holder of the shares of Class C Stock converted, (b) the
          corporation shall not be required to issue or deliver such
          certificates unless or until the person or persons requesting the
          issuance thereof shall have paid to the corporation the amount of such
          tax or shall have established to the satisfaction of the corporation
          that such tax has been paid and (c) the corporation may refuse to
          effect any such transfer until evidence satisfactory to it is
          presented that such transfer does not violate the provisions of the
          Securities Act of 1933, as then in effect.  The corporation may also
          require the printing on any certificate the legend provided for in
          Section 7(a) above.

               (vi) The corporation shall at all times reserve and keep
          available out of its authorized but unissued shares of Common Stock,
          and shall obtain and keep in force such permits or other
          authorizations as may be required, and shall comply with all

                                     -15-

 
          requirements as to registration or other qualification, in order to
          enable the corporation lawfully to issue and deliver solely for the
          purpose of effecting the conversion of the preferred shares, such
          number of common shares as shall from time to time be sufficient to
          effect the conversion of all shares of Class C Stock from time to time
          outstanding.  The corporation shall from time to time in accordance
          with the laws of the State of California increase the authorized
          amount of its Common Stock if at any time the number of shares of
          Common Stock remaining unissued and available for issuance upon
          conversion of Class C Stock shall not be sufficient to permit
          conversion of all the then outstanding Class B Stock.

               (vii)  Shares of Class C Stock converted pursuant hereto shall
          not be reissued.

               (viii) Notwithstanding any other provisions of this Section 7, if
          the corporation has given notice pursuant to Section 5 or Section 6(b)
          hereof that any share of Class C Stock is to be redeemed, then the
          holder thereof shall have no right to convert such share during the 5
          days prior to the date fixed for redemption, unless the corporation
          shall be unable to effect a redemption on the date so fixed, in which
          event the right to convert such share shall again exist as provided
          herein.

          8.   Restrictions.  So long as any shares of Class C Stock are issued
               ------------                                                    
and outstanding, the corporation shall not, without the affirmative vote or
written consent of at least two-thirds of the shares of Class C Stock then
outstanding:
               (a) Alter or amend any of the rights, privileges or preferences
     thereof; or
               (b) Increase the authorized number of shares of Preferred Stock;
     or

                                     -16-

 
               (c) Create any other class of Preferred Stock on a parity with or
     superior to the shares of the corporation's 4% Preferred Series, Class B
     Stock or the Class C Stock; or

               (d) Subdivide or combine the outstanding shares of Common Stock;
     or

               (e) Enter into a merger or consolidation with any other
     corporation; or

               (f) Effect a voluntary winding up, dissolution or liquidation of
     the corporation."

          3.   The authorized number of shares of Preferred Stock of this
corporation is 5,000 shares of the par value of $100, of which 750 shares,
designated 4% Cumulative Convertible Preferred Series, are authorized and 748
thereof are issued and outstanding, 2,500 shares, designated 7% Class B
Convertible Preferred Stock are authorized, none of which is issued and
outstanding, and the number of shares constituting the 7% Class C Convertible
Preferred Stock which this corporation is authorized to issue is 1,000 shares,
and none of which shares has been issued.

          Executed this 20th day of April, 1971, at Carpinteria, California.



                                     _________________________________________
                                     F. H. Campbell, President



                                     _________________________________________
                                     Margie E. Casten, Assistant Secretary
 
                                     -17-

 
                                  VERIFICATION


          F. H. Campbell and Margie E. Casten each declare under penalty of
perjury that they are the President and Assistant Secretary, respectively, of
Kilovac Corporation, a California corporation, and that the matters set forth in
the foregoing Certificate of Determination of Preferences are true and correct.

          Executed at Carpinteria, California, on April 20th, 1971.



                                     _________________________________________
                                     F. H. Campbell



                                     _________________________________________
                                     Margie E. Casten

                                     -18-

 
                           CERTIFICATE OF AMENDMENT

                                      OF

                     ARTICLES OF INCORPORATION OF KILOVAC

          F. H. CAMPBELL and MARGIE E. CASTEN certify that:

          1.   They are the President and the Assistant Secretary, respectively,
of KILOVAC CORPORATION, a California corporation.

          2.   The By-Laws of said corporation authorize the directors to amend
the Articles of Incorporation of said corporation by unanimous written consent;
by unanimous written consent of the Board of Directors of said corporation date
August 12, 1971, the following resolution was adopted:

               "RESOLVED, that Article II of the Articles of
          Incorporation is hereby amended to read in full as follows:

               The principal office for the transaction of business of
          the corporation is to be located in the County of Santa
          Barbara, State of California.

               RESOLVED FURTHER, that the proper officers of this
          corporation are hereby authorized and directed to obtain the
          necessary approval of the stockholders of this corporation
          and, upon approval by the stockholders, to take all other
          steps necessary to amend the Articles of Incorporation of
          this corporation to reflect said change of said principal
          offices."

          3.   The shareholders have adopted the amendment by written consent.
The wording of the amended article, as set forth in the shareholders'
resolution, is the same as that set forth in the directors' resolution in
Paragraph 2 above.

 
          4.   That the number of shares which consented to the adoption of said
resolution is 105,820, and that the total number of shares entitled to consent
to said amendment is 105,820.

                              ___________________________________________
                              F.H. Campbell, President


                              ___________________________________________
                              Margie E. Casten, Assistant Secretary

          Each of the undersigned declares, under penalty of perjury, that the
matters set forth in the foregoing certificate are true and correct.

          Executed at Carpenteria, California, on October __, 1971.

                              ___________________________________________
                              F.H. Campbell, President


                              ___________________________________________
                              Margie E. Casten, Assistant Secretary


                                      -2-

 
                           CERTIFICATE OF OWNERSHIP
                                      OF
                              KILOVAC CORPORATION
                               RE MERGER OF THE
                                DOW-KEY COMPANY


          Kilovac Corporation, a California corporation, does hereby certify:

          1.   Kilovac Corporation owns all of the issued and outstanding shares
of the common stock of The Dow-Key Company, a Minnesota corporation ("Dow-Key
Company").

          2.   The resolutions attached hereto as Exhibit "A" were adopted by
unanimous written consent of the board of directors of Kilovac Corporation
without a meeting.

          3.   The By-Laws of Kilovac Corporation authorize any action required
or permitted to be taken by the board of directors of said corporation under any
provision of the California General Corporation Law to be taken without a
meeting if all of the directors of the corporation consent in writing to such
action.

          4.   The merger of Dow-Key Company into Kilovac Corporation is
permitted by the laws of the State of Minnesota, the state of incorporation of
Dow-Key Company, and is in compliance therewith.

 
     IN WITNESS WHEREOF, Kilovac Corporation has executed this Certificate of
Ownership this ____ day of October, 1971.

                              KILOVAC CORPORATION


                              By:_______________________________
                                    President


                              By:_______________________________
                                    Assistant Secretary


     Foster H. Campbell and Margie Casten, being, respectively, the President
and Assistant Secretary of Kilovac Corporation, declare under penalty of perjury
that the matters set forth in the foregoing Certificate of Ownership are true
and correct.  Executed at Los Angeles, California, on October __, 1971.


_______________________                     _____________________________ 
President                                   Assistant Secretary

                                      -2-

 
                                  EXHIBIT "A"


               WHEREAS, this corporation owns all of the issued and
          outstanding shares of the common stock of The Dow-Key
          Company, a Minnesota corporation ("Dow-Key Company"); and

               WHEREAS it is deemed advisable and in the best
          interests of this corporation that Dow-Key Company be merged
          into this corporation and that this corporation be possessed
          of all of the estate, property, rights, privileges and
          franchises of said Dow-Key Company, subject to all of its
          liabilities and obligations and the rights of its creditors;

               NOW, THEREFORE, BE IT RESOLVED, that this corporation,
          in its capacity as the sole shareholder of Dow-Key Company,
          does hereby ratify, confirm and approve the plan of complete
          liquidation heretofore adopted by the Board of Directors of
          Dow-Key Company and that this corporation does further
          hereby adopt said plan;

               RESOLVED FURTHER, that in pursuance of said plan of
          complete liquidation, this corporation merge Dow-Key
          Company, its wholly owned subsidiary, into itself and assume
          all of the liabilities and obligations of said subsidiary,
          pursuant to Section 391,421 the Minnesota Business
          Corporation Act and Section 4124 of the Corporations Code of
          the State of California;

               RESOLVED FURTHER, that the President or any Vice
          President and the Secretary or any Assistant Secretary of
          this corporation be, and they hereby are, authorized and
          directed to execute, verify and file or cause to be filed in
          the office of the Secretary of State of the State of
          California, for the purpose of effecting said merger, a
          Certificate of Ownership in the form and manner contemplated
          by Section 4124 of the Corporations Code of the State of
          California.

               RESOLVED FURTHER, that the President or any Vice
          President and the Secretary or any Assistant Secretary of
          the corporation be, and they hereby are, authorized and
          directed to execute, verify and file or cause to be filed in
          the office of the Secretary of State of the State of
          Minnesota, for the purpose of effecting said merger, a
          Certificate of Ownership in the form and manner contemplated
          by Section 301.421 of the Minnesota Business Corporation
          Act;

 
               RESOLVED FURTHER, that the officers of this corporation
          be, and they hereby are, authorized and directed to do any
          and all things and to execute any and all documents which
          they shall deem necessary and proper in order to consummate
          the plan of complete liquidation and merger contemplated by
          the foregoing resolutions;

               RESOLVED FURTHER, that the foregoing plan of complete
          liquidation and merger contemplated thereby shall be fully
          consummated within the current taxable year of said
          subsidiary.

                                      -2-

 
                           CERTIFICATE OF AMENDMENT
                                      OF
               ARTICLES OF INCORPORATION OF KILOVAC CORPORATION

          F. H. Campbell and Jerry L. Dysart certify that:

          1.   They are the President and the Secretary, respectively, of
KILOVAC CORPORATION, a California corporation.

          2.   Article IV of the Articles of Incorporation of this
          corporation is amended to read as follows:

               "This corporation is authorized to issue three classes
          of stock, which shall be designated Common Stock, Preferred
          Stock, and Preference Stock, respectively. The total number
          of shares which this corporation is authorized to issue is
          310,000 shares of three classes, consisting of 300,000
          shares of Common Stock without series and with a par value
          of $.10 per share, 5,000 shares of Preferred Stock, $100 par
          value, and 5,000 shares of Preference Stock, without par
          value. The aggregate par value of all shares of stock that
          are to have a par value shall be $530,000.

               The shares of Preferred Stock and Preference Stock may
          be issued from time to time in one or more series. The Board
          of Directors of the corporation may, in their unlimited and
          unrestricted discretion, fix or alter the dividend rights,
          dividend rate, conversion rights, voting rights, rights and
          terms of redemption (including sinking fund provisions), the
          redemption price or prices and the liquidation preferences
          of any wholly unissued series of shares of Preferred Stock
          and Preference Stock and the number of shares constituting
          any series and the designation of such series; and increase
          or decrease the number of shares of any series subsequent to
          the issue of shares of that series, but not below the number
          of shares of such series then outstanding. In case the
          number of shares of any series shall be so decreased, the
          shares constituting such decrease shall resume the status
          which they had prior to the resolution originally fixing the
          number of such series."

          3.   The foregoing amendment of Articles of Incorporation has been
duly approved by the Board of Directors.

 
          4.   The foregoing amendment of Articles of Incorporation has been
duly approved by the required vote of shareholders in accordance with Section
902 of the Corporations Code.  The total number of outstanding shares of the
corporation is 105,820 shares of Common Stock, 748 shares of 4% Preferred
Series, 2,500 shares of Class B Preferred Stock and 1,000 shares of Class C
Preferred Stock.  The number of shares voting in favor of the amendment equaled
or exceeded the vote required.  The percentage vote required in the case of the
Common Stock and the 4% Preferred Series was more than 50% and, in the case of
the Class B Preferred Stock and Class C Preferred Stock, the vote required was
more than two-thirds.

 
                                   ____________________________________________
                                   F.H. Campbell, President


 
                                   ____________________________________________
                                   Jerry E. Dysart, Secretary

                                      -2-

 
                                 VERIFICATION

          Each of the undersigned declares under penalty of perjury that the
matters set forth in the foregoing certificate are true and correct of his own
knowledge.  Executed at Carpinteria, California, on September 13, 1980.

 
                                   ____________________________________________
                                   F.H. Campbell, President


                                   ____________________________________________
                                   Jerry L. Dysart, Secretary

                                      -3-

 
                         CERTIFICATE OF DETERMINATION
                                      OF
                              KILOVAC CORPORATION


          F. H. Campbell and Jerry L. Dysart certify that:

          1.   They are the President and Secretary, respectively, of KILOVAC
CORPORATION, a California corporation.

          2.   The Articles of Incorporation of said corporation, as amended.
authorize the issuance of 5,000 shares of Preference Stock, without par value,
from time to time, in one or more series, and authorize the Board of Directors
by resolution to fix the rights, privileges and references thereof and the
number of shares constituting any unissued series of Preference Stock and the
designation of such series, and that pursuant thereto the Board of Directors of
said corporation, did duly adopt the following resolution by unanimous written
consent:

               "RESOLVED, that this Board of Directors does hereby
          provide for the issuance of a series of Preference Stock of
          this corporation and does hereby fix and determine the
          rights, preferences, restrictions and other matters relating
          to said additional series of Preference Stock as follows:

               1.   Designation and Number of Shares. This series
          shall be designated and known as the 14% Preference Stock,
          Second Series, (the "Second Series Stock"), and the number
          of shares constituting the Second Series Stock small be 49
          shares.

               2.   Second Series Stock Dividends. The holders of
                    -----------------------------
          Second Series Stock shall be entitled to receive dividends
          at the rate of $140 per annum on each share thereof,
          payable, at the Discretion of the Board of Directors of the
          Corporation, in cash or other property determined by the
          Board of Directors of the Corporation in good faith to have
          an equivalent fair market value. Dividend payments shall be
          made quarterly on March 31, June 30, September 30 and
          December 31 of each year, or at such lesser intervals as the
          Board of Directors may from time to time determine. Such
          dividends shall accrue from the date of issuance of the
          respective shares of Second Series Stock and shall be deemed
          to

 
          accrue from day to day whether or not earned or declared.
          Such dividends shall be payable before any dividends shall
          be declared, paid upon or set apart for the Common Stock,
          and shall be cumulative so that if in any year or years
          dividends upon the outstanding Second Series Stock at the
          rate of $140 per annum for coach share thereof shall not
          have been paid hereon or set apart therefor, the amount of
          the deficiency shall be fully paid or declared and set apart
          for payment, but without interest, before any distribution,
          whether by day of dividend or otherwise, shall be declared,
          paid upon or set apart for the Common Stock. In addition to
          the foregoing, if at any time there shall be paid a dividend
          upon the Common Stock, there also shall be declared and paid
          a dividend upon the Second Series Stock in a substantially
          equivalent amount, treating each share of Second Series
          Stock as being such number of shares of Common Stock as
          would result from dividing the liquidation preference of
          such share of Second Series Stock by the then fair market
          value of a share of Common Stock and multiplying the
          quotient thus obtained by the per share dividend declared on
          the Common Stock. The determination of the amount of
          dividend allocable to each share of Second Series Stock
          shall be made by the Board of Directors of the Corporation,
          in good faith, and shall be payable, at the discretion of
          the Board of Directors of the Corporation, in cash or other
          property determined by the Board of Directors of the
          Corporation in good faith to have an equivalent fair market
          value.

               3.   Liquidation Preferences.
                    ----------------------- 

                    (a)  In the event of a voluntary or involuntary
          liquidation, dissolution or winding up of this corporation,
          the holders of Second Series Stock shall be entitled to
          receive out of the assets of this Corporation, whether such
          assets are capital or surplus of any nature, an amount equal
          to $1,000 per share, and, in addition to such amount, a
          further amount equal to the dividends accrued, unpaid and
          accumulated thereon, as provided in Section 2 above, to the
          date of such distribution, whether earned or declared, or
          not, all on a parity with the shares of the Corporation's 4%
          Preferred Stock and 14% Preference Stock, First Series there
          outstanding and with the shares of any other series of
          Preferred Stock or Preference Stock that by its terms is
          entitled to participate on a parity with the 4% Preferred
          Stock or 14% Preference Stock, First Series.

                    (b)  if upon such liquidation, dissolution or
          winding up, whether voluntary or involuntary, the assets
          thus distributed among the holders of the Second Series
          Stock shall be insufficient to permit the payment to such
          shareholders of the full

                                      -2-

 
          preferential amounts aforesaid, then the entire assets of
          this Corporation to be distributed shall be distributed
          ratably among the holders of the 4% Preferred Stock and the
          14% Preference Stock, First Series, the Second Series Stock
          and any other series of Preferred Stock or Preference Stock
          that by its terms is entitled to participate on a parity
          with the 4% Preferred Stock or the 14% Preference Stock,
          First Series.

                    (c)  A consolidation or merger of this Corporation
          with or into any other corporation or corporations shall not
          be deemed to be a liquidation, dissolution or winding up
          within the meaning of this paragraph.

                    4.   Voting Rights. Except as otherwise provided
                         -------------
          hereinafter, or as may be required by law, the holders of
          the shares of the Second Series Stock shall not be entitled
          to vote. If, however, any five consecutive quarterly
          dividends on the Second Series Stock shall not have been
          paid in full, the holders of the shares of Second Series
          Stock shall be entitled to one vote per share and to vote on
          all matters on which holders of Common Stock of the
          Corporation are entitled to vote. Such voting rights shall
          cease when all accrued and unpaid dividends are paid in fall
          as provided in Section 2 above.

                    5.   Redemption. The Corporation may at any time,
                         ----------
          on or after June 30, 1986, at the option of the Board of
          Directors, redeem the whole or from time to time any part of
          the Second Series Stock, by paying in cash for each share an
          amount equal to $1,000 per share plus an amount equal to all
          dividends accrued, unpaid and accumulated thereon, as
          provided in Section 2 hereof, to and including the date
          fixed for redemption the total amount of such amounts being
          hereinafter referred to as the redemption price." Should
          only a part of the Second Series Stock outstanding be
          redeemed, such redemption shall be effected by lot as
          prescribed by the Board of Directors or pro rata. No Second
          Series Stock may be redeemed unless all accrued dividends,
          as provided in Section 2 hereof, on all outstanding shares
          of Second Series Stock (whether or not such shares are then
          being redeemed) shall have been paid. At least thirty (30)
          days prior notice by mail, postage prepaid, shall be given
          to each holder of record of the shares of Second Series
          Stock to be redeemed, at his last known address shown on the
          records of the Corporation. On or before the date fixed for
          redemption, each holder of Second Series Stock called for
          redemption shall surrender its certificate for such shares
          to the Corporation at the place designated in the notice of
          redemption and shall thereupon be redemption entitled to
          receive payment of the price. In case less than all the

                                 -3-

 
          shares represented by any such surrendered certificate are
          redeemed, a new certificate shall be issued representing the
          unredeemed shares. If such redemption notice shall have been
          duly given and if on the date fixed for redemption, funds
          necessary for the redemption shall be legally available
          therefor, then all rights with respect to such shares so
          called for redemption, whether or not surrendered, shall
          terminate except for the right payment as herein provided
          upon surrender of such certificates therefor to the date
          fixed for redemption.

               6.   Conversion. The Second Series Stock shall not be
                    ----------
          convertible into any other shares of stock of the
          Corporation."

          3.   The authorized number of shares of Preference Stock of this
Corporation is 5,000 shares, without par value, of which 211 shares designated
and known as the 14% Preference Stock, First Series, is issued and outstanding,
and the number of shares constituting the 14% Preference Stock, Second Series,
which this Corporation is authorized to issue is 49 shares, none of which shares
has been issued.

     Executed this ____ day of _________, 1981, at Carpinteria, California.


 
                                   ___________________________________________ 
                                   F. H. CAMPBELL, PRESIDENT



                                   __________________________________________
                                   JERRY L. DYSART, SECRETARY

                                 -4-

 
                            VERIFICATION

          Each of the undersigned declares under penalty of perjury that the
matters set forth in the foregoing certificate are true and correct of his own
knowledge.  Executed at Carpinteria, California, on September 13, 1980.

 
                                   
                                   __________________________________________
                                   F.H. Campbell



                                   ___________________________________________
                                   Jerry L. Dysart

                                 -5-

 
                         CERTIFICATE OF DETERMINATION
                                      OF
                              KILOVAC CORPORATION


          F. H. Campbell and Jerry L. Dysart certify that:

          1.   They are the President and Secretary, respectively, of KILOVAC
CORPORATION, a California corporation.

          2.   The Articles of Incorporation of said corporation, as amended,
authorize the issuance of 5,000 shares of Preference Stock, without par value,
from time to time, in one or more series, and authorize the Board of Directors
by resolution to fix the rights, privileges and preferences thereof and the
number of shares constituting any unissued series of Preference Stock and the
designation of such series, and that pursuant thereto the Board of Directors of
said corporation, did duly adopt the following resolution by unanimous written
consent:

               "RESOLVED, that this Board of Directors does hereby
          provide for the issuance of a series of Preference Stock of
          this corporation and does hereby fix and determine the
          rights, preferences, restrictions and other matters relating
          to said additional series of Preference Stock as follows:

               1.   Designation and Number of Shares. This series of
                    --------------------------------
          Preference Stock shall be designated and known as the 14%
          Preference Stock, First Series, (the "First Series Stock"),
          and the number of shares constituting the First Series Stock
          shall be 211 shares.

               2.   First Series Stock Dividends. The holders of First
                    ----------------------------
          Series Stock shall be entitled to receive dividends at the
          rate of $140 per annum on each share thereof, payable, at
          the discretion of the Board of Directors of the Corporation,
          in cash or other property determined by the Board of
          Directors of the Corporation in good faith to have an
          equivalent fair market value. Dividend payments shall be
          made quarterly on March 31, June 30, September 30 and
          December 31 of each year, or at such lesser intervals as the
          Board of Directors may from time to time determine. Such
          dividends shall accrue from the date of issuance of the
          respective shares of First 

 
          Series Stock and shall be deemed to accrue from day to day
          whether or not earned or declared. Such dividends shall be
          payable before any dividends shall be declared, paid upon or
          set apart for the Common Stock, and shall be cumulative so
          that if in any year or years dividends upon the outstanding
          First Series Stock at the rate of $140 per annum for each
          share thereof shall not have been paid thereon or set apart
          therefor, the amount of the deficiency shall be fully paid
          or declared and set apart for payment, but without interest,
          before any distribution, whether by way of dividend or
          otherwise, shall be declared, paid upon or set apart for the
          Common Stock. In addition to the foregoing, if at any time
          there shall be paid a dividend upon the Common Stock, there
          also shall be declared and paid a dividend upon the First
          Series Stock in a substantially equivalent amount, treating
          each share of First Series Stock as being such number of
          shares of Common Stock as would result from dividing the
          liquidation preference of such share of First Series Stock
          by the then fair market value of a share of Common Stock and
          multiplying the quotient thus obtained by the per share
          dividend declared on the Common Stock. The determination of
          the amount of dividend allocable to each share of First
          Series Stock shall be made by the Board of Directors of the
          Corporation in good faith, and shall be payable, at the
          discretion of the Board of Directors of the Corporation, in
          cash or other property determined by the Board of Directors
          of the Corporation in good faith to have an equivalent fair
          market value.

          3.   Liquidation Preferences.
               ----------------------- 

               (a)  In the event of a voluntary or involuntary
          liquidation, dissolution or winding up of this Corporation,
          the holders of First Series Stock shall be entitled to
          receive out of the assets of this Corporation, whether such
          assets are capital or surplus of any nature, an amount equal
          to $1,000 per share, and, in addition to such amount, a
          further Amount equal to the dividends accrued, unpaid and
          accumulated thereon, as provided in Section 2 above, to the
          date of such distribution, whether earned or declared, or
          not, all on a parity with the shares of the corporation's 4%
          Preferred Stock then outstanding and with the shares of any
          other series of Preferred Stock or Preference Stock that by
          its terms is entitled to participate on a parity with the 4%
          Preferred Stock.

               (b)  If upon such liquidation, dissolution or winding
          up, whether voluntary or involuntary, the assets thus
          distributed among the holders of the First Series Stock
          shall be insufficient to permit the payment to such
          shareholders of the full preferential amounts

                                 -2-

 
          aforesaid, than the entire assets of this corporation to be
          distributed shall be distributed ratably among the holders
          of the 4% Preferred Stock, the First Series Stock and any
          other series of Preferred Stock or Preference Stock that by
          its terms is entitled to participate on a parity with the 4%
          Preferred Stock.

               (c)  A consolidation or merger of this Corporation with
          or into any other corporation or corporations shall not be
          deemed to be a liquidation, dissolution or winding up within
          the meaning of this paragraph.

               4.   Voting Rights. Except as otherwise provided
                    -------------
          hereinafter, or as may be required by law, the holders of
          the shares of the First Series Stock shall not be entitled
          to vote. If, however, any five consecutive quarterly
          dividends on the First Series Stock shall not have been paid
          in full, the holders of the shares of First Series Stock
          shall be entitled to one vote per share and to vote on all
          matters on which holders of Common Stock of the Corporation
          are entitled to vote. Such voting rights shall cease when
          all accrued and unpaid dividends are paid in full as
          provided in Section 2 above.

               5.   Redemption. The Corporation way at any time, on or
                    ----------
          after June 30, 1985, at the option of the Board of
          Directors, redeem the whole or from time to time any part of
          the First Series Stock, by paying in cash for each share an
          amount equal to $1,000 per share plus an amount equal to all
          dividends accrued, unpaid and accumulated thereon, as
          provided in Section 2 hereof, to and including the date
          fixed for redemption, the total of such amounts being
          hereinafter referred to as the "redemption price". Should
          only a part of the First Series Stock outstanding be
          redeemed, such redemption shall be effected by lot as
          prescribed by the Board of Directors or pro rata. No First
          Series Stock may be redeemed unless all accrued dividends,
          as provided in Section 2 hereof, on all outstanding shares
          of First Series Stock (whether or not such shares are then
          being redeemed) shall have been paid. At least thirty (30)
          days prior notice by mail, post-age prepaid, shall be given
          to each holder of record of the shares of First Series Stock
          to be redeemed, at his last known address shown on the
          records of the Corporation. On or before the date fixed for
          redemption, each holder of First Series Stock called for
          redemption shall surrender his certificate for such shares
          to the Corporation at the place designated in the notice of
          redemption and shall thereupon be entitled to receive
          payment of the redemption price. In case less than all the
          shares represented by any such surrendered certificate are
          redeemed, a new certificate shall be issued representing the
          unredeemed shares. If such redemption

                                 -3-

 
          notice shall have been duly given and if on the date fixed
          for redemption, funds necessary for the redemption shall be
          early available therefor, then all rights with respect to
          such shares so called for redemption, whether or not
          surrendered, shall terminate except for the right of payment
          as herein provided upon surrender of such certificates
          therefor to the date fixed for redemption.

               6.   Conversion. The First Series Stock shall not be
                    ----------
          convertible into any other shares of stock of the
          Corporation."

          3.   The authorized number of shares of Preference Stock of this
Corporation is 5,000 shares, without par value, none of which is issued and
outstanding, and the number of shares constituting the 14% Preference Stock,
First Series, which this Corporation is authorized to issue is 211 shares, none
of which shares has been issued. 

          Executed this 13th day of September, 1980, at Carpinteria, California.

 

                                   ___________________________________________
                                   F.H. Campbell, President


 
                                   ___________________________________________
                                   Jerry L. Dysart, Secretary

                                      -4-

 
                                 VERIFICATION

          Each of the undersigned declares under penalty of perjury that the
matters set forth in the foregoing certificate are true and correct of his own
knowledge.  Executed at Carpinteria, California, on September 13, 1980.


 
                                   ___________________________________________
                                   F.H. Campbell, President


 
                                   ___________________________________________
                                   Jerry L. Dysart, Secretary

                                      -5-

 
                        CERTIFICATE OF DETERMINATION OF
                                      OF
                    PREFERRED STOCK OF KILOVAC CORPORATION


          F.H. Campbell and Margie E. Casten certify that:

          1.   They are the President and the Assistant Secretary, respectively,
of KILOVAC CORPORATION, a California corporation.

          2.   The Articles of Incorporation of said corporation, as amended,
authorize the issuance of 5,000 shares of preferred stock, par value $100 per
share, from time to time, in one or more series, and authorize the Board of
Directors by resolution to fix the rights, privileges and preferences thereof
and the number of shares constituting any unissued series of preferred stock and
the designation of such series, and that pursuant thereto the Board of Directors
of said corporation, at a meeting duly held on January 31, 1971, in Santa
Barbara, California, at which meeting a quorum was present and acting
throughout, did duly adopt the following resolution:

               "RESOLVED, that this Board of Directors does hereby provide for
     the issuance of an additional shares of Preferred Stock of this corporation
     and does hereby fix and determine the rights, preferences, restrictions and
     other matters relating to said additional series of Preferred Stock as
     follows:

               1.  Designation and Number of Shares.  This series of Preferred
                   --------------------------------                           
     Stock shall be designated and known as the 7% Class B Convertible Preferred
     Stock, $100 par value (the "Class B Stock"), and the number of shares
     constituting the Class B Stock shall be 2,500 shares.

               2.  Class B Stock Dividends.  The holders of Class B Stock shall
                   -----------------------                                     
     be entitled to receive dividends at the rate of 7% per annum on the par
     value thereof, payable

 
     in cash. Dividend payments shall be made quarterly on March 31, June 30,
     September 30 and December 31 of each year, or at such lesser intervals as
     the Board of Directors may from time to time determine. Such dividends
     shall accrue from the date of issuance of the respective shares of Class B
     Stock and shall be deemed to accrue from day to day whether or not earned
     or declared. Such dividends shall be payable before any dividends shall be
     declared or paid or set apart for the Common Stock, and shall be cumulative
     so that if in any year or years dividends upon the outstanding Class B
     Stock at the rate of 7% per annum of the par value thereof shall not have
     been paid thereon or set apart therefor, the amount of the deficiency shall
     be fully paid or declared and set apart for payment, but without interest,
     before any distribution, whether by way of dividend or otherwise, shall be
     declared or paid upon or set apart for the Common Stock.

          3.   Liquidation Preferences.
               ----------------------- 
           
               (a)  Except as provided in paragraph (b) of this Section 3, in
     the event of a voluntary or involuntary liquidation, dissolution or winding
     up of this corporation, the holders of Class B Stock shall be entitled to
     receive out of the assets of this corporation, whether such assets are
     capital or surplus of any nature, an amount equal to the par value of the
     Class B Stock; and, in addition to such amount, a further amount equal to
     the dividends unpaid and accumulated thereon, as provided in Section 2
     above to the date of such distribution, whether earned or declared, or not,
     all on a parity with the shares of the Company's 4% Preferred Series then
     outstanding and with the shares of any other series of Preferred Stock that
     by its terms is entitled to participate on a parity with the 400 Preferred
     Series.
                                      
                                      -2-
          

 
               (b) In the event of an involuntary liquidation, dissolution or
     winding up of this corporation, the holders of Class B Stock, but only
     while they retain conversion rights pursuant to the provisions of Section 7
     hereof, shall be entitled to receive out of the assets of this corporation
     an amount equal to the greater of the amount receivable pursuant to
     provisions of paragraph (a) of this Section 3 or that amount which they
     would receive as holders of the Common Stock had they converted their Class
     B Stock into Common Stock pursuant to the provisions of Section 7 hereof
     immediately prior to such liquidation, dissolution or winding up of the
     corporation.

               (c) If upon such liquidation, dissolution or winding up, whether

     voluntary or involuntary, the assets thus distributed among the holders of
     the Class B Stock shall be insufficient to permit the payment to such
     shareholders of the full preferential amounts aforesaid, then the entire
     assets of this corporation to be distributed shall be distributed ratably
     among the holders of the 4% Preferred Series, the Class B Stock and any
     other series of Preferred Stock that by its terms is to share in such
     distribution with the 4% Preferred Series.

               (d) A consolidation or merger of this corporation with or into

     any other corporation or corporations shall not be deemed to be a
     liquidation, dissolution or winding up within the meaning of this
     paragraph.

          4.   Voting Rights.  Except as otherwise provided hereinafter, the
               -------------                                                
     holders of the shares of Class B Stock as a class shall be entitled to
     elect one director.  If, however:  (i) all quarterly dividends cumulated on
     the Class B Stock as of March 31, 1973., shall not have been paid in full
     by April 15, 1973; or (ii) any cumulated dividends payable on the Class B
     Stock for any year subsequent to March 31, 1973 shall not have been paid in
     full as of

                                      -3-

 
     April 15 of any year subsequent to 1973; or (iii) the corporation shall
     fail to create a Sinking Fund at the times and to the extent provided for
     in Section 6 hereof; or (iv) the corporation at any tine is in default
     under that certain agreement by and among the corporation and Wells Fargo
     Investment Company dated March 31, 1971 and fails to cure any such default
     within 15 days of the giving of written notice thereof by Wells Fargo
     Investment Company; or (v) the corporation issues any further shares of
     Class B Stock (except as provided in Section 8 hereof) or declares a
     dividend on its Common Stock without the prior written consent of the
     holders of the Class B Stock, then the holders of the Class B Stock as a
     class shall be entitled to elect the smallest number of directors
     constituting two-thirds of the Board of Directors and the holders of the
     remaining voting stock of the corporation shall retain the right to elect
     only the remaining director or directors until all defaults giving rise to
     the special voting rights of the holders of Class B Stock have been cured
     or waived, at which time the voting rights shall revert to their status
     prior to the occurrence of such defaults. Any officer, director, or
     shareholder may call a special meeting of all shareholders of the
     corporation in the manner prescribed in the By-Laws for the purpose of
     electing directors pursuant to this Section, and for such purpose shall
     have access to the records of the corporation upon such defaults. Upon
     restoration of full voting rights to their previous status, the term of the
     additional directors elected by the holders of the Class B stock shall
     expire and a special meeting of all shareholders may be called to elect a
     number of directors sufficient to fill all existing positions, or the Board
     of Directors, if permitted by the By-Laws, may fill such vacancies,

          5.   Redemption.  The corporation may, at the option of the Board of
               ----------                                                     
     Directors, redeem the whole or from time to time any part of the Class B
     Stock on and after

                                      -4-

 
     December 31, 1978, by paying in cash for each share an
     amount equal to the par value of each share plus an amount equal to all
     dividends accrued, unpaid and accumulated thereon as provided in Section 2
     hereof to and including the date fixed for redemption, the total of such
     amounts being hereinafter referred to as the "redemption price".  Should
     only a part of the Class B Stock outstanding be redeemed, such redemption
     shall be effected by lot as prescribed by the Board of Directors or pro
     rata.  No Class B Stock may be redeemed unless all accrued dividends as
     provided for in Section 2 hereof on all outstanding shares of Class B Stock
     shall have been paid for all past dividend periods and full dividends as
     provided for in Section 2  hereof for the current period declared upon all
     Class B Stock, except the shares to be redeemed.  At least twenty (20) days
     prior notice by mail, postage prepaid, shall be given to each holder of
     record of the shares of Class B Stock to be redeemed, at his last known
     address shown on the records of the corporation.  On or before the date
     fixed for redemption, each holder of Class B Stock called for redemption
     shall, unless he shall have previously exercised his option to convert his
     Class B Stock as provided in Section 7 hereof, surrender his certificate
     for such shares to the corporation at the place designated in the notice of
     redemption and shall thereupon be entitled to receive payment of the
     redemption price. In case less than all the shares represented by any such
     surrendered certificate are redeemed, a new certificate shall be issued
     representing the unredeemed shares.  If such redemption notice shall have
     been duly given and if on the date fixed for redemption, funds necessary
     for the redemption shall be legally available therefor, when all rights
     with respect to such shares so called for redemption, whether or not
     surrendered, shall terminate except for the right of interest upon
     Surrender of such certificates therefor to the date fixed for redemption.

                                      -5-

 
          6.   Sinking Fund.
               ------------ 

               (a) On or before March 31, 1979 the corporation shall create from
     the net earnings of the corporation for any preceding fiscal year or years,
     after full payment or provision for payment of dividends on the Class B
     Stock and all other shares of the corporation ranking prior to or on a
     parity with the Class B Stock for all prior fiscal years through the end of
     the last preceding dividend period for such shares, as a sinking fund for
     the purchase or redemption of the Class B Stock (hereinafter called the
     "Sinking Fund"), cash, bonds or other certificates of indebtedness of the
     United State of America or corporate bonds, rated A or better by any of the
     standard bond rating services and listed on the New York Stock exchange, in
     a sum equal to 33% of the par value of the total number of shares of Class
     B Stock originally outstanding.  On or before each of March 31, 1980 and
     March 31, 81, the corporation shall add to Sinking Fund, from net earnings
     as aforesaid, an additional sum in each case equal to 33% of the par value
     of the total number of shares of Class B Stock originally outstanding.  If
     on any March 31 referred to above the net earnings after such payment or
     provision for payment of dividends shall be insufficient to discharge the
     applicable Sinking Fund requirement in full, then the net earnings shall be
     set aside for the Sinking Fund. The Sinking Fund requirements shall be
     cumulative so that if for any year or years the requirements shall not be
     fully discharged the net earnings, after payment or provisions for
     dividends, for each fiscal year thereafter shall be applied thereto until
     the requirements are fully discharged.

               (b) On or before June 30 in each of the years 1979, 1980 and

     1981, respectively the cash or bonds in the Sinking Fund as of such date
     shall be used to acquire one-third of the total number of shares of Class B
     Stock originally outstanding to the extent

                                      -6-

 
     of the amount then in the Sinking Fund, by purchase, at a price or prices
     not exceeding the par value thereof, or by redemption, at the par value
     thereof, in the manner provided in Section 5 hereof, in each case plus
     accrued dividends thereon to the date of such purchase or redemption which
     shall be paid from the general funds of the corporation and not from the
     Sinking Fund, or by both such purchase and such redemption. Upon retirement
     of all Class B Stock, any cash or bonds remaining in the Sinking Fund in
     excess of that required to complete payment for any shares purchased or
     agreed to be purchased, or to redeem shares called for redemption through
     the operation of the Sinking Fund, shall become a part of the general funds
     of the corporation.

          7.   Conversion Rights.
               ----------------- 

               (a) The holder of any share or shares of Class B Stock shall have
     the right, at his option, at any time after December 31, 1971, subject to
     the terms and provisions of this Section 7, to convert any such share or
     shares of Class Stock (valuing each Class B share at $100 for the purpose
     of such conversion) into shares of Common Stock of the corporation,
     initially at the price of $3.354 per share of Common Stock, or, in case an
     adjustment of such amount has taken place pursuant to the provisions of
     this Section 7 hereof, then at the amount as last adjusted (said initial or
     adjusted price being referred to herein as the "conversion price"), upon
     surrender of the certificate or certificates for such share or shares of
     Class B Stock to the corporation at any time during usual business hours at
     the office of the corporation or at the office of any transfer agent for
     the shares of Class B Stock or at such other place, if any, as the Board of
     Directors shall determine, together with written notice (hereinafter
     referred to as the "conversion notice"), that the holder elects to convert
     such share or shares of Class B Stock into Common Stock in accordance with
     the

                                      -7-

 
     provisions hereof, and specifying the name or names in which the shares
     of stock issuable upon such conversion shall be registered, together with
     the addresses of the persons so named, and accompanied by a written
     instrument or instruments of transfer in form satisfactory to the
     corporation duly executed by the holder or his attorney duly authorized in
     writing; provided, however, that notwithstanding any other provision of
     this Section 7, if the corporation has given notice pursuant to Section 5
     or Section 6(b) hereof that any share of Class B Stock is to be redeemed,
     then the holder thereof shall have no right to convert such share during
     the 5 days prior to the date fixed for redemption, unless the corporation
     shall be unable to effect a redemption on the date so fixed, in which event
     the right to convert such share shall again exist as provided herein.  In
     the event the names so specified are different from the name of the
     registered holder of the Class B Stock so converted, the holder shall also
     furnish the corporation with evidence satisfactory to it that registration
     of such shares is not required under the Securities Act of 1933, as then in
     effect, and, if the corporation's counsel shall advise it to do so, the
     corporation shall have the right to place on the certificates evidencing
     such shares an appropriate legend restricting the transfer thereof.

               (b) As promptly as practicable after the surrender, as herein
     provided, of any certificate or certificates for such share or shares of
     Class B Stock for conversion and the receipt of the conversion notice
     relating thereto, the corporation shall deliver or caused to be delivered
     at said office to or upon the written order of the person for whose account
     such share or shares of Class B Stock were so surrendered, certificates
     representing the number of fully-paid and non-assessable shares of Common
     Stock of the corporation to which he shall be entitled, imprinted with a
     legend restricting the transfer thereof, if appropriate, together with a
     cash adjustment for any fraction of a share as hereinafter stated


                                      -8-

 
     if not evenly convertible plus all dividends accrued and unpaid thereon to
     the date of conversion. Subject to the following provisions of this
     paragraph 7 hereof, such conversion shall be deemed to have been made at
     the close of business on the date of such surrender of the share or shares
     of Class B Stock to be converted and the person or persons entitled to
     receive the shares of Common Stock upon conversion of such share of Class B
     Stock shall be treated for all purposes as having become the record holder
     or holders of such shares of Common stock at such time and such conversion
     shall be at the conversion price in effect at such time.

               (c) Adjustments to conversion price shall be made as follows:

                   (i) Subject to the exceptions referred to below, in case the
     corporation shall at any time or from time to time after the date hereof
     issue any additional shares of Common Stock for a consideration per share
     less than the conversion price in effect immediately prior to the issuance
     of such additional shares, or without consideration, then, and thereafter
     successively upon each such issuance, the conversion price in effect
     immediately prior to the issuance of such additional shares shall forthwith
     be reduced to a price determined by dividing an amount equal to (x) the
     total number of shares of common stock outstanding immediately prior to
     such issuance, multiplied by the conversion price in effect immediately
     prior to such issuance, plus (y) the consideration, if any, received by the
     corporation upon such issuance, by the total number of shares of
     corporation stock outstanding immediately after the issuance of such
     additional shares.

          For the purposes of any adjustment as provided in this Section 7(c),
     the following provisions shall also be applicable:
          
                                      -9-

 
                         (A) In case of the issuance of additional shares of
          Common Stock solely for cash, the consideration received by the
          corporation therefor shall be deemed to be the net cash proceeds
          received by the corporation for such shares before deducting any
          commissions or other expenses paid or incurred by the corporation for
          any underwriting of, or otherwise in connection with, the issuance of
          such shares,

                         (B) In case of the issuance by the corporation of (i)
          any security that is convertible into shares of Common Stock of the
          corporation (other than the Class B Stock and shares of Class C
          preferred stock initially convertible into not more than 29,815 shares
          of Common Stock), or (ii) any rights or options to purchase shares of
          Common Stock of the corporation (except as stated below), the
          corporation shall be deemed to have issued the maximum number of
          shares of Common Stock into which such convertible security may be
          converted, or the maximum number of shares of Common Stock deliverable
          upon the exercise of such rights or options, for the consideration
          received by the corporation for such convertible securities or for
          such rights or options, as the case may be, before deducting any
          commissions or other expenses paid or incurred by the corporation for
          any underwriting of, or otherwise in connection with, the issuance of
          such convertible security or rights or options plus (i) any
          consideration or adjustment payment to be received by the corporation
          in connection with such conversion, or (ii) the minimum aggregate
          price at which shares of Common Stock of the Corporation are to be
          delivered upon the exercise of such rights or options or, if no
          minimum price is specified and such shares are to be delivered at an
          option price

                                     -10-

 
          related to the market value of the subject shares, an
          aggregate option price bearing the same relation to the market value
          of the subject shares at the time such rights or options were granted;
          provided that as to such options such further adjustments as shall be
          necessary on the basis of the actual option price at the time of
          exercise shall be made at such time if the actual option price is less
          than the aforesaid assisted option price.  No further adjustment of
          the conversion price shall be made as a result of the actual issuance
          of shares of Common Stock of the corporation referred to in this
          Clause (B).  On the expiration of such rights or options, or the
          termination of such right to convert, the conversion price hereunder
          shall be readjusted to such conversion price as would have obtained
          the adjustments made upon the issuance of such rights, options, or
          convertible securities been made upon the basis of the delivery of
          only the number of shares of Common Stock actually delivered upon the
          exercise of such rights or options or upon the conversion of any such
          securities.

                         (C) The consideration for any additional shares of
          Common Stock (or securities convertible into Common Stock) issued as a
          stock dividend shall be deemed to be nothing.

                         (D) In the event that any shares of Common Stock or any
          warrants, rights or options to purchase any shares of Common Stock or
          any securities convertible into or exchangeable for shares of Common
          Stock shall be issued by the corporation for a consideration only a
          portion of which is cash or none of which is cash, the Board of
          Directors of the corporation shall determine the fair value of such
          consideration other than cash and the shares, warrants, rights,
          options or convertible or exchangeable securities shall be deemed to
          be issued for an amount of cash equal

                                     -11-

 
          to the cash portion of the consideration, if any, plus the value so
          determined by the Board of Directors.

                         (E) The number of shares of stock of any class at the
          time outstanding shall include all shares of stock of that class then
          owned or held by or for the account of the corporation and shall
          include the aggregate number of shares deliverable in respect of the
          convertible securities, rights and options referred to in Clause (B)
          of this Section 7; provided that to the extent that such options,
          rights or conversion privileges are not exercised, such shares shall
          be deemed to be outstanding only until the expiration dates of the
          rights, options or conversion privileges or the prior cancellation
          thereof.

                If at any time or from time to time the corporation shall by
          subdivision, consolidation or reclassification of shares, or
          otherwise, change as a whole, the outstanding shares of Common Stock
          into a different number or class of shares, the outstanding shares
          issuable upon conversion of each share of Class B Stock and the
          conversion price per share shall be proportionately and
          correspondingly adjusted.

                Irrespective of any adjustments or changes in the conversion
          price, the shares of Class B Stock heretofore and hereafter issued
          shall continue to express the conversion price per share when
          initially issued.

                No adjustment of the conversion price shall be made as a result
          of or in connection with the issuance of shares of Common Stock (or
          securities convertible into Common Stock) pursuant to (i) restricted
          or qualified stock options outstanding on November 30, 1970, or
          pursuant to stock options intended to qualify as restricted or
          qualified stock options as defined in Sections 422 or 424 of the
          Internal Revenue

                                     -12-

 
          Code (or successor provisions) assured or granted by the Corporation
          after November 30, 1970, (ii) the conversion of the Class B Stock, or
          (iii) the conversion of convertible securities outstanding on November
          30, 1970, or issued pursuant to an agreement between the corporation
          and the former shareholders of Penta Laboratories, Inc. (the "Penta
          Shareholders"), dated August 1, 1969, as amended by letter agreements
          dated August 1, 1969 and December 4, 1969 (the "Penta Agreement"). In
          the event the corporation should be required to issue pursuant to the
          Penta Agreement and employment agreements executed in connection
          therewith in excess of 18,927 shares of Common Stock, the issuance of
          any such shares in excess of 18,927 shares shall be deemed to be
          issued without consideration for the purposes of this Section 7(c) and
          appropriate adjustments shall be made in the conversion price.

                Whenever the conversion price is adjusted as provided in this
          Section 7(c), the corporation will promptly obtain a certificate of a
          firm of independent public accountants of recognized standing selected
          by the Board of Directors (who may be regular auditors of the
          corporation) setting forth the conversion price and shares as so
          adjusted and a brief statement of the facts accounting for such
          adjustment, and will promptly file the same with the Secretary of the
          corporation and will cause to be mailed a brief summary thereof to the
          registered holders of the Class B Stock at their last addresses as
          they appear on the registry books of the corporation.

                (ii)  If, prior to the redemption or repurchase in full or
     conversion in full of the Class B Stock, the corporation shall at any tire
     consolidate with or merge into another corporation, the holder of each
     share of Class B Stock will thereafter receive, upon the

                                     -13-

 
     conversion thereof, the securities or property to which a holder of the
     number of shares of Common Stock then issuable upon the conversion of such
     Class B Stock would have been entitled upon such consolidation or merger,
     and the corporation shall take such steps in connection with such
     consolidation or merger as may be necessary to assure that the provisions
     of the Class B Stock shall thereafter be applicable, as nearly as
     reasonably may be, in relation to any securities or property thereafter
     issuable upon the conversion of the Class B Stock. A sale of all or
     substantially all the assets of the corporation for a consideration (apart
     from the assumption of obligations) consisting principally of securities
     shall be deemed a consolidation or merger for the foregoing purposes.
                
                (iii) No fractional shares shall be issued upon the conversion
     of any shares of Class B Stock, but in lieu thereof the corporation shall
     pay therefor in cash in proportion to the conversion price.

                (iv)  In case:

                      (a) The corporation shall declare a dividend on Common
               Stock payable otherwise than in cash out of its earned surplus or
               payable in Common Stock; or

                      (b) The corporation shall authorize the granting to the
               holders of Common Stock of rights to subscribe for or purchase
               any shares of capital stock of any class or of any other rights;
               or

                      (c) of any reclassification of the Common Stock (other
               than a subdivision or combination of outstanding shares of Common
               Stock), or of any consolidation or merger to which the
               corporation is a party and for which

                                     -14-

 
               approval of any shareholders of the corporation is required, or
               the sale or transfer of all or substantially all of the assets of
               the Company; or

                      (d) of the voluntary or involuntary dissolution,
               liquidation or winding up of the corporation; then the
               corporation shall cause to be mailed to the registered holders of
               the Class B Stock, first class, postage prepaid, at least 30 days
               prior to the applicable record date hereinafter specified, a
               notice summarizing such action or event and stating the record
               date for any such dividend or rights, or, if a record is not to
               be taken, the date as of which the holders of Common Stock of
               record to be entitled to such dividend or rights are to be
               determined, the date on which any such reclassification, or
               consolidation merger, sale, transfer, dissolution, liquidation or
               winding up is expected to become effective, and the date as of
               which it is expected the holders of Common stock of record shall
               be entitled to effect any exchange of their shares of Common
               Stock for securities or other property deliverable upon any such
               reclassification, consolidation, merger, sale, transfer,
               dissolution, liquidation or winding up.

               (v) The issuance of certificate for shares of Common Stock upon
     the conversion of shares of Class B Stock shall be made without charge to
     the converting Class B Stock shareholders for any tax in respect to the
     issuance of such certificates, and such certificates shall be issued in the
     respective names of, or in such names as may be directed by, the holders of
     the shares of Class B Stock converted; provided, however, that (a) the
     corporation shall not be required to pay any tax which may be payable in
     respect of any transfer involved in the issuance and delivery of any such
     certificate in a name other


                                     -15-

 
     than that of the holder of the shares of Class B Stock converted, (b) the
     corporation shall not be required to issue or deliver such certificates
     unless or until the person or persons requesting the issuance thereof shall
     have paid to the corporation the amount of such tax or shall have
     established to the satisfaction of the corporation that such tax has been
     paid and (c) the corporation may refuse to effect any such transfer until
     evidence satisfactory to it is presented that such transfer does not
     violate the provisions of the Securities Act of 1933, as then in effect.
     The corporation may also require the printing on any certificate the legend
     provided for in Section 7(a) above.

                (vi)  The corporation shall at all times reserve and keep
     available out of its authorized but unissued shares of Common Stock, and
     shall obtain and keep in force such permits or other authorizations as may
     be required, and shall comply with all requirements as to registration or
     other qualification, in order to enable the corporation lawfully to issue
     and deliver solely for the purpose of effecting the conversion of the
     preferred shares, such number of common shares as shall from time to time
     be sufficient to effect the conversion of all shares of Class B Stock from
     time to time outstanding.  The corporation shall from time to time in
     accordance with the laws of the State of California increase the authorized
     amount of its Common Stock if at any time the number of shares of Common
     Stock remaining unissued and available for issuance upon conversion of
     Class B Stock shall not be sufficient to permit conversion of all the then
     outstanding Class B stock.

                (vii) Shares of Class B Stock converted pursuant hereto shall
     not be reissued.

                                     -16-

 
          8.   Restrictions.  So long as any shares of Class B Stock are issued
               ------------                                                    
     and outstanding, the corporation shall not, without the affirmative vote or
     written consent of at least two-thirds of the shares of Class B Stock then
     outstanding:
               (a) Alter or amend any of the rights, privileges or references
     thereof; or
               
               (b) Increase the authorized number of shares of Preferred Stock;
or
               (c) Create any other class of Preferred Stock on a parity with or
     superior to the shares of the 4% Preferred Series, the Class B Stock or not
     to exceed 1,000 shares of Class C Preferred Stock (which Class C Preferred
     Stock shall not be superior to the 4% Preferred Stock or the Class B
     Stock); or

               (d) Subdivide or combine the outstanding shares of Common Stock;
     or
               (e) Enter into a merger or consolidation with any other
     corporation; or
               
               (f) Effect a voluntary winding up, dissolution or liquidation of
     the corporation."

          3.   The authorized number of shares of Preferred Stock of this
corporation is 5,000 shares of the par value of $100, of which 750 shares,
designated 4% Cumulative Convertible Preferred Series, are authorized and 748
thereof are issued and outstanding, 1,000 shares, designated 7% Class C
Convertible Preferred Stock, are authorized and none of which is issued and
outstanding, and the number of shares constituting the 7% Class B Convertible
Preferred Stock which this corporation is authorized to issue is 2,500 shares,
and none of which shares has been issued.

                                     -17-

 
          Executed this _____ day of April, 1971, at Carpinteria, California.

                              _______________________________________________   
                              F. H. Campbell, President
                              


                              _______________________________________________
                              Margie E. Casten, Assistant Secretary


                                     -18-

 
                                 VERIFICATION

          F. H. Campbell and Margie E. Casten each declare under penalty of
perjury that they are the President and Assistant Secretary, respectively, of
Kilovac Corporation, a California corporation, and that the matters set forth in
the foregoing Certificate of Determination of Preferences are true and correct.

          Executed at Carpinteria, California, on April __, 1971.

                                 ______________________________________________
 

                                
                                 ______________________________________________
                                

                                     -19- 

 
                           CERTIFICATE OF AMENDMENT
                                      OF
                           ARTICLE OF INCORPORATION
                                      OF
                              KILOVAC CORPORATION


          PHILIP L. SMITH and RICHARD A. EDICK certify that:

          1.   They are the president and the secretary, respectively, of
Kilovac Corporation, a California corporation.

          2.   Article IV of the articles of incorporation of this corporation
is amended to read as follows:

          "The corporation is authorized to issue two classes of shares to be
designated 'Class A,' and 'Class B', herein referred to as 'Class A Common
Shares' and Class B Common Shares', respectively.  Upon the amendment of this
article to read as herein set forth, each outstanding share of common stock is
hereby reclassified and reconstituted as one share of Class A Common Shares.

          The holders of the Class A Common Shares shall have and possess 10
votes per each share of Class A Common Shares, and the holders of the Class B
Common Shares shall have and possess 1 vote per each share of Class B Common
Shares.

          The total number of Class A Common Shares authorized is 200,000, and
the total number of Class B Common Shares authorized is 200,000."

          3.   The foregoing amendment of articles of incorporation has been
duly approved by the board of directors.

          4.   The foregoing amendment of articles of incorporation has been
duly approved by the required vote of shareholders in accordance with Section
902 of the Corporations Code.  The total number of outstanding shares of the
corporation is 53,379.  The number of shares voting in favor of the amendment
equalled or exceeded the vote required.  The percentage vote required was more
than 50%.

 
We further declare under penalty of perjury under the laws of the State of
California that the matters set forth in this certificate are true and correct
of our own knowledge.

Date:___________________, 1991


                                         ____________________________________
                                         Philip L. Smith, President
                             
                             
                                         ____________________________________
                                         Richard A. Edick, Secretary

                                      -2-