Document:

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                                                                     EXHIBIT 4.4

                                 CELERITEK, INC.

                          REGISTRATION RIGHTS AGREEMENT

        This Registration Rights Agreement (the "Agreement") is made as of
February 4, 2000, between Celeritek, Inc., a California corporation (the
"Company") and the persons (the "Purchasers") identified on EXHIBIT A to Common
Stock Purchase Agreement dated as of the date hereof (the "Purchase Agreement").

                                   SECTION 1

                 RESTRICTIONS ON TRANSFERABILITY OF SECURITIES;
               COMPLIANCE WITH SECURITIES ACT; REGISTRATION RIGHTS

        CERTAIN DEFINITIONS. As used in this Agreement, the following terms
shall have the following respective meanings:

        "Commission" shall mean the Securities and Exchange Commission or any
other federal agency at the time administering the Securities Act.

        "Common Stock" shall mean Company Common Stock, no par value per share.

        "Holder" shall mean (i) the Purchasers and (ii) any person holding
Registrable Securities to whom the rights under this Section 1 have been
transferred in accordance with Section 1.13 hereof.

        "Registrable Securities" means the Shares until such time that such
securities have been (i) sold to or through a broker or dealer or underwriter in
a public distribution or a public securities transaction, or (ii) sold or are,
in the opinion of counsel for the Company, available for sale in a single
transaction exempt from the registration and prospectus delivery requirements of
the Securities Act so that all transfer restrictions and restrictive legends
with respect thereto are removed upon the consummation of such sale.

        The terms "register," "registered" and "registration" refer to a
registration effected by preparing and filing a registration statement in
compliance with the Securities Act, and the declaration or ordering of the
effectiveness of such registration statement.

        "Registration Expenses" shall mean all expenses, except as otherwise
stated below, incurred by the Company in complying with Section 1.5 hereof,
including, without limitation, all registration, qualification and filing fees,
printing expenses, escrow fees, fees and disbursements of counsel for the
Company, blue sky fees and expenses, the expense of any special audits incident
to or required by any such registration (but excluding the compensation of
regular employees of the Company which shall be paid in any event by the
Company).

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        "Restricted Securities" shall mean the securities of the Company
required to bear the legend set forth in Section 1.3 hereof.

        "Securities Act" shall mean the Securities Act of 1933, as amended, or
any similar federal statute and the rules and regulations of the Commission
thereunder, all as the same shall be in effect at the time.

        "Selling Expenses" shall mean all underwriting discounts, selling
commissions and stock transfer taxes applicable to the securities registered by
the Holders and, except as set forth above, all reasonable fees and
disbursements of counsel for any Holder.

        "Shares" shall mean the shares of Common Stock issued to the Purchaser
pursuant to the Purchase Agreement and any other securities issued in respect of
such securities upon any stock split, stock dividend, recapitalization, merger,
consolidation or similar event.

        1.2    RESTRICTIONS ON TRANSFERABILITY. The Shares shall not be sold,
assigned, transferred or pledged except upon the conditions specified in this
Section 1. The Holder will cause any proposed purchaser, assignee, transferee,
or pledgee of any such shares held by the Holder to agree to take and hold such
securities subject to the provisions and upon the conditions specified in this
Section 1.

        1.3    RESTRICTIVE LEGEND. Each certificate representing Shares and any
other securities issued in respect of the Shares upon any stock split, stock
dividend, recapitalization, merger, consolidation or similar event, shall
(unless otherwise permitted by the provisions of Section 1.4 below) be stamped
or otherwise imprinted with a legend in the following form (in addition to any
legend required under applicable state securities laws):

               THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE BEEN ACQUIRED FOR
               INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT
               OF 1933. SUCH SHARES MAY NOT BE SOLD OR TRANSFERRED IN THE
               ABSENCE OF SUCH REGISTRATION UNLESS THE COMPANY RECEIVES AN
               OPINION OF COUNSEL REASONABLY ACCEPTABLE TO IT STATING THAT SUCH
               SALE OR TRANSFER IS EXEMPT FROM THE REGISTRATION AND PROSPECTUS
               DELIVERY REQUIREMENTS OF SAID ACT.

               Each Holder consents to the Company making a notation on its
records and giving instructions to any transfer agent of the Common Stock in
order to implement the restrictions on transfer established in this Section 1.

        1.4    RESTRICTIONS ON TRANSFER; NOTICE OF PROPOSED TRANSFERS. The
holder of each certificate representing Restricted Securities by acceptance
thereof agrees to comply in all respects with the provisions of this Section
1.4. Prior to any proposed sale, assignment, transfer or pledge of any
Restricted Securities (other than (i) a transfer not involving a change in
beneficial ownership, (ii) any transfer by any Holder to (A) any individual or
entity controlled by, controlling, or under common control with, such Holder or
(B) any entity with respect to which such Holder (or any

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person controlled by, controlling, or under common control with, such Holder)
has the power to direct investment decisions, or (iv) in transactions in
compliance with Rule 144), and unless there is in effect a registration
statement under the Securities Act covering the proposed transfer, the holder
thereof shall give written notice to the Company of such holder's intention to
effect such transfer, sale, assignment or pledge. Each such notice shall
describe the manner and circumstances of the proposed transfer, sale, assignment
or pledge in sufficient detail, and shall be accompanied, at such holder's
expense by either (i) a written opinion of legal counsel who shall be, and whose
legal opinion shall be, reasonably satisfactory to the Company addressed to the
Company, to the effect that the proposed transfer of the Restricted Securities
may be effected without registration under the Securities Act, or (ii) a "no
action" letter from the Commission to the effect that the transfer of such
securities without registration will not result in a recommendation by the staff
of the Commission that action be taken with respect thereto, whereupon the
holder of such Restricted Securities shall be entitled to transfer such
Restricted Securities in accordance with the terms of the notice delivered by
the holder to the Company. Each certificate evidencing the Restricted Securities
transferred as above provided shall bear, except if such transfer is made
pursuant to Rule 144, the appropriate restrictive legend set forth in Section
1.3 above, except that such certificate shall not bear such restrictive legend
if in the opinion of counsel for such holder and the Company such legend is not
required in order to establish compliance with any provision of the Securities
Act. Notwithstanding the foregoing, so long as an executive officer or director
of the Holder serves as an executive officer or director of the Company, the
Holder agrees to not sell or transfer the Registrable Securities during periods
outside of the trading windows applicable to the officers of the Company as set
forth in the Company's Insider Trading Program adopted by the Company's Board of
Directors.

        1.5    MANDATORY REGISTRATION. The Company shall prepare and on or prior
to the date that is fifteen (15) business days after the Closing Date (as
defined in the Purchase Agreement) file with the Commission a registration
statement (the "Registration Statement") on an appropriate form for registering
for resale by the Holder the Shares and the Company shall use its best efforts
to cause the Registration Statement to be declared effective no later than 120
days after the issuance of the Shares (the "Required Effective Date") pursuant
to the terms of the Purchase Agreement.

        1.6    LIQUIDITY DAMAGES. In the event that the Registration Statement
is not declared effective by the Securities and Exchange Commission on or prior
to the Required Effective Date, and the cause of the delay is not related to
circumstances beyond the Company's control (such as the failure of the SEC to
review and act on the Registration Statement or amendments to the Registration
Statement in a timely manner), the Company shall pay to the Holders a cash
payment equal to (x) $0.133333 per Share (as adjusted for stock splits, stock
dividends, recapitalizations and similar events), times (y) the number of Shares
held by the Holder, times (z) the number of trading days after the Required
Effective Date that the Registration Statement is not effective.

        1.7    EXPENSES OF REGISTRATION. All Registration Expenses incurred in
connection with all registrations pursuant to Section 1.5 shall be borne by the
Company. Unless otherwise stated, all Selling Expenses relating to securities
registered on behalf of the Holders and all other Registration Expenses shall be
borne by the Holders of such securities pro rata on the basis of the number of
shares so registered.

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        1.8    REGISTRATION PROCEDURES. In the case of each registration,
qualification or compliance effected by the Company pursuant to this Section 1,
the Company will keep each Holder advised in writing as to the initiation of
each registration, qualification and compliance and as to the completion
thereof. At its expense the Company will:

               (a) Prepare and file with the Commission a registration statement
with respect to such securities and use its best efforts to cause such
registration statement to become effective as soon as possible after the filing
thereof, and keep the Registration Statement effective pursuant to Rule 415 at
all times, subject to Section 1.8, until such date as is the earlier of (i) the
date on which all Registrable Securities have been sold by each Holder, and (ii)
the date on which the Registration Rights terminate as set forth in Section
1.15; and

               (b) Furnish to the Holders participating in such registration and
to the underwriters of the securities being registered such reasonable number of
copies of the registration statement, preliminary prospectus, final prospectus
and such other documents as such underwriters may reasonably request in order to
facilitate the public offering of such securities.

        1.9    SUSPENSION OF REGISTRATION. The Company shall promptly notify the
Holders of (i) the issuance by the SEC of a stop order suspending the
effectiveness of the Registration Statement, (ii) the happening of any event, of
which the Company has knowledge, as a result of which the prospectus included in
the Registration Statement, as then in effect, includes an untrue statement of a
material fact or omission to state a material fact required to be stated therein
or necessary to make the statements therein not misleading, and (iii) the
occurrence or existence of any pending corporate development that, in the
reasonable discretion of the Company, makes it appropriate to suspend the
availability of the Registration Statement, to comply with SEC rules. In each
case the Company shall use reasonable efforts to promptly prepare a supplement
or amendment to the Registration Statement to correct such untrue statement or
omission, and deliver such number of copies of such supplement or amendment to
each Holder as such Holder may reasonably request; provided that, the Company
may delay to the extent permitted by law the disclosure of material non-public
information concerning the Company the disclosure of which at the time is not,
in the good faith opinion of the Company, in the best interests of the Company
(an "Allowed Delay"). The Company shall promptly notify the Holders in writing
of the existence of an Allowed Delay and shall advise the Holders in writing to
cease all sales under the Registration Statement until the end of the Allowed
Delay.

        1.10   INDEMNIFICATION.

               (a) The Company will indemnify each Holder, each of its officers
and directors and partners, and each person controlling such Holder within the
meaning of Section 15 of the Securities Act, with respect to which registration,
qualification or compliance has been effected pursuant to this Section 1, and
each underwriter, if any, and each person who controls any underwriter within
the meaning of Section 15 of the Securities Act, against all expenses, claims,
losses, damages or liabilities (or actions in respect thereof), including any of
the foregoing incurred in settlement of any litigation, commenced or threatened,
arising out of or based on any untrue statement (or alleged untrue statement) of
a material fact contained in any registration statement, prospectus, offering
circular or other document, or any amendment or supplement thereto, incident to
any such registration, qualification or compliance, or based on any omission (or
alleged omission)

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to state therein a material fact required to be stated therein or necessary to
make the statements therein, in light of the circumstances in which they were
made, not misleading, or any violation by the Company of the Securities Act, the
Exchange Act, state securities law or any rule or regulation promulgated under
such laws applicable to the Company in connection with any such registration,
qualification or compliance, and within a reasonable period the Company will
reimburse each such Holder, each of its officers and directors, and each person
controlling such Holder, each such underwriter and each person who controls any
such underwriter, for any legal and any other expenses reasonably incurred in
connection with investigating, preparing or defending any such claim, loss,
damage, liability or action; provided that the Company will not be liable in any
such case to the extent that any such claim, loss, damage, liability or expense
arises out of or is based on any untrue statement or omission or alleged untrue
statement or omission, made in reliance upon and in conformity with written
information furnished to the Company by an instrument duly executed by such
Holder, controlling person or underwriter and stated to be specifically for use
therein.

               (b) Each Holder will, if Registrable Securities held by such
Holder are included in the securities as to which such registration,
qualification or compliance is being effected, indemnify the Company, each of
its directors and officers, each underwriter, if any, of the Company's
securities covered by such a registration statement, each person who controls
the Company or such underwriter within the meaning of Section 15 of the
Securities Act, and each other such Holder, each of its officers and directors
and each person controlling such Holder within the meaning of Section 15 of the
Securities Act, against all claims, losses, damages and liabilities (or actions
in respect thereof) arising out of or based on any untrue statement (or alleged
untrue statement) of a material fact contained in any such registration
statement, prospectus, offering circular or other document, or any omission (or
alleged omission) to state therein a material fact required to be stated therein
or necessary to make the statements therein not misleading, and within a
reasonable period will reimburse the Company, such Holders, such directors,
officers, persons, underwriters or control persons for any legal or any other
expenses reasonably incurred in connection with investigating or defending any
such claim, loss, damage, liability or action, in each case to the extent, but
only to the extent, that such untrue statement (or alleged untrue statement) or
omission (or alleged omission) is made in such registration statement,
prospectus, offering circular or other document in reliance upon and in
conformity with written information furnished to the Company by an instrument
duly executed by such Holder and stated to be specifically for use therein.
Notwithstanding the foregoing, the liability of each Holder under this
subsection (b) shall be limited in an amount equal to the gross proceeds before
expenses and commissions to each Holder received for the shares sold by such
Holder, unless such liability arises out of or is based on willful misconduct by
such Holder.

               (c) Each party entitled to indemnification under this Section
1.10 (the "Indemnified Party") shall give notice to the party required to
provide indemnification (the "Indemnifying Party") promptly after such
Indemnified Party has actual knowledge of any claim as to which indemnity may be
sought, and shall permit the Indemnifying Party to assume the defense of any
such claim or any litigation resulting therefrom, provided that counsel for the
Indemnifying Party, who shall conduct the defense of such claim or litigation,
shall be approved by the Indemnified Party (whose approval shall not
unreasonably be withheld), and the Indemnified Party may participate in such
defense at such party's expense, and provided further that the failure of any
Indemnified Party to give notice as provided herein shall not relieve the
Indemnifying Party of its

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obligations under this Section 1 unless the failure to give such notice is
materially prejudicial to an Indemnifying Party's ability to defend such action
and provided further, that the Indemnifying Party shall not assume the defense
for matters as to which there is a conflict of interest or separate and
different defenses. No Indemnifying Party, in the defense of any such claim or
litigation, shall, except with the consent of each Indemnified Party, consent to
entry of any judgment or enter into any settlement which does not include as an
unconditional term thereof the giving by the claimant or plaintiff to such
Indemnified Party of a release from all liability in respect to such claim or
litigation.

        1.11   INFORMATION BY HOLDER. The Holder or Holders of Registrable
Securities included in any registration shall furnish to the Company such
information regarding such Holder or Holders, the Registrable Securities held by
them and the distribution proposed by such Holder or Holders as the Company may
request in writing and as shall be required in connection with any registration,
qualification or compliance referred to in this Section 1.

        1.12   RULE 144 REPORTING. With a view to making available the benefits
of certain rules and regulations of the Commission which may at any time permit
the sale of the Restricted Securities to the public without registration, after
such time as a public market exists for the Common Stock of the Company, the
Company agrees to use its best efforts to:

               (a) Make and keep public information available, as those terms
are understood and defined in Rule 144 under the Securities Act, at all times
after the effective date that the Company becomes subject to the reporting
requirements of the Securities Act or the Exchange Act;

               (b) Use its best efforts to file with the Commission in a timely
manner all reports and other documents required of the Company under the
Securities Act and the Exchange Act (at any time after it has become subject to
such reporting requirements); and

               (c) So long as a Holder owns any Restricted Securities to furnish
to the Holder forthwith upon request a written statement by the Company as to
its compliance with the reporting requirements of said Rule 144, and of the
Securities Act and the Exchange Act, a copy of the most recent annual or
quarterly report of the Company, and such other reports and documents of the
Company and other information in the possession of or reasonably obtainable by
the Company as the Holder may reasonably request in availing itself of any rule
or regulation of the Commission allowing the Holder to sell any such securities
without registration.

        1.13   TRANSFER OF REGISTRATION RIGHTS. The rights to cause the Company
to register securities granted Holders under Section 1.5 may be assigned to a
transferee or assignee reasonably acceptable to the Company which acquires at
least 100,000 shares of Registrable Securities in connection with any transfer
or assignment of Registrable Securities by the Holders.

        1.14   STANDOFF AGREEMENT. In connection with any public offering of the
Company's securities, the Holder agrees, upon request of the Company or the
underwriters managing any underwritten offering of the Company's securities, not
to sell, make any short sale of, loan, grant any option for the purchase of, or
otherwise dispose of any Registrable Securities (other than those included in
the registration) without the prior written consent of the Company or such
underwriters, as the case may be, for such period of time (not to exceed one
hundred eighty (180) days) from the

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effective date of such registration as may be requested by the underwriters,
provided that the officers and directors of the Company who own stock of the
Company and each holder representing at least 1% ownership of the Company's
outstanding Common Stock also agrees to such restrictions.

        1.15   TERMINATION OF REGISTRATION RIGHTS. The registration rights
granted pursuant to Section 1 shall terminate as to each Holder at such time as
a public market for the Company's Common Stock exists and all Registrable
Securities held by such Holder may, in the opinion of counsel to the Company
(which opinion shall be addressed and rendered to Holder), be sold pursuant to
Rule 144(k).

                                   SECTION 2

                                  MISCELLANEOUS

        2.1    GOVERNING LAW. This Agreement shall be governed in all respects
by the internal laws of the State of California.

        2.2    SURVIVAL. The covenants and agreements made herein shall survive
the closing of the transactions contemplated hereby.

        2.3    SUCCESSORS AND ASSIGNS. Except as otherwise provided herein, the
provisions hereof shall inure to the benefit of, and be binding upon, the
successors, assigns, heirs, executors and administrators of the parties hereto.

        2.4    ENTIRE AGREEMENT; AMENDMENT. This Agreement and the Purchase
Agreement constitute the full and entire understanding and agreement between the
parties with regard to the subjects hereof and thereof, and no party shall be
liable or bound to any other party in any manner by any warranties,
representations or covenants except as specifically set forth herein or therein.
Except as expressly provided herein, neither this Agreement nor any term hereof
may be amended, waived, discharged or terminated other than by a written
instrument signed by the party against whom enforcement of any such amendment,
waiver, discharge or termination is sought; provided, however, that holders of a
majority of the Registrable Securities may, with the Company's prior written
consent, waive, modify or amend on behalf of all holders, any provisions hereof.

        2.5    NOTICES, ETC. All notices and other communications required or
permitted hereunder shall be in writing and shall be mailed by registered or
certified mail, postage prepaid, or otherwise delivered by hand or by messenger,
addressed (a) if to a Holder, at such address as such Holder shall have
furnished the Company in writing, or, until any such holder so furnishes an
address to the Company, then to and at the address of the last Holder who has so
furnished an address to the Company, or (b) if to the Company, one copy should
be sent to its address set forth on the cover page of this Agreement and
addressed to the attention of the President, or at such other address as the
Company shall have furnished to the Holders.

        Each such notice or other communication shall for all purposes of this
Agreement be treated as effective or having been given when delivered if
delivered personally, or, if sent by mail, at the

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earlier of its receipt or 72 hours after the same has been deposited in a
regularly maintained receptacle for the deposit of the United States mail,
addressed and mailed as aforesaid.

        2.6    DELAYS OR OMISSIONS. Except as expressly provided herein, no
delay or omission to exercise any right, power or remedy accruing to any party
to this Agreement upon any breach or default of any other party under this
Agreement, shall impair any such right, power or remedy of such nondefaulting
party nor shall it be construed to be a waiver of any such breach or default, or
an acquiescence therein, or of or in any similar breach or default thereafter
occurring; nor shall any waiver of any single breach or default be deemed a
waiver of any other breach or default theretofore or thereafter occurring. Any
waiver, permit, consent or approval of any kind or character on the part of any
party of any breach or default under this Agreement, or any waiver on the part
of any holder of any provisions or conditions of this Agreement, must be in
writing and shall be effective only to the extent specifically set forth in such
writing. All remedies, either under this Agreement or by law or otherwise
afforded to any party to this Agreement, shall be cumulative and not
alternative.

        2.7    COUNTERPARTS. This Agreement may be executed in any number of
counterparts, each of which shall be enforceable against the parties actually
executing such counterparts, and all of which together shall constitute one
instrument.

        2.8    SEVERABILITY. In the event that any provision of this Agreement
becomes or is declared by a court of competent jurisdiction to be illegal,
unenforceable or void, this Agreement shall continue in full force and effect
without said provision; provided that no such severability shall be effective if
it materially changes the economic benefit of this Agreement to any party.

        2.9    TITLES AND SUBTITLES. The titles and subtitles used in this
Agreement are used for convenience only and are not considered in construing or
interpreting this Agreement.

                          [SIGNATURE PAGE(s) FOLLOW(s)]

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<PAGE>   9

               The foregoing Agreement is hereby executed as of the date first
above written.

                                    "COMPANY"

                                    CELERITEK, INC.
                                    a California Corporation

                                    By:
                                       -------------------------------------
                                        Tamer Husseini
                                        Chief Executive Officer

                                    "PURCHASER"

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

                [SIGNATURE PAGE TO REGISTRATION RIGHTS AGREEMENT]

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              SCHEDULE OF PARTIES TO REGISTRATION RIGHTS AGREEMENT

<TABLE>
<CAPTION>
        Party                                      Number of Registrable Shares

<S>                                                        <C>
        Kahn Capital Management L.P.                       545,000
        Brian Kahn                                          69,000
        Bricoleur Partners I L.P.                           10,500
        Bricoleur Partners II L.P.                         170,300
        Aventine                                             9,200
        Lyxor Master Fund Channel Islands                   10,000
        Gruber & McBaine Int'l                              16,000
        Jon D. Gruber                                        5,000
        Thomas O. Lloyd-Butler                               1,000
        Lagunitas Partners L.P.                             28,000
        Gottardo Bank                                       99,999
        John Galt Fund L.P.                                 69,444
        John Galt Offshore Fund                              3,611
        Zurich HFR Nmaster Hedge Fund Index LTD              7,500
        Asset Management Holding Co                         19,444
        Schottenfeld Associates                            150,000
        Puglisi Capital Partners, L.P.                      50,000
        Snorkel Bay & Co                                   150,000
        Snail Sand & Co                                     47,000
        J B Were Global Small Companies Fund                 7,000
        NZFunds Global Small Companies Trust                27,000
        James Sloman Jr.                                     5,000

        Totals                                           1,499,998
</TABLE><PAGE>   1
                                                                     EXHIBIT 4.4

                            THIRD AMENDMENT TO FIFTH
                       AMENDED AND RESTATED LOAN AGREEMENT

     This Third Amendment (the "Amendment") dated as of February 11, 1999, is
between Bank of America National Trust and Savings Association (the "Bank") and
Ducommun Incorporated, a Delaware corporation (the "Borrower").

                                    RECITALS

     A. The Bank and the Borrower entered into a certain Fifth Amended and
Restated Loan Agreement dated as of June 23, 1997, as amended by a First
Amendment dated as of October 1, 1997 and a Second Amendment dated as of August
10, 1998 ("Second Amendment") (as amended, the "Agreement").

     B. The Bank and the Borrower desire to further amend the Agreement.

                                    AGREEMENT

     1. Definitions. Capitalized terms used but not defined in this Amendment
shall have the meaning given to them in the Agreement.

     2. Amendments. The Agreement is hereby amended as follows:

          2.1 Paragraph 1.1 of the Agreement is hereby amended as follows:

               (a) The following defined terms are added to Paragraph 1.1 of the
     agreement, in the appropriate alphabetical sequence, to read as follows:

                    "`Letter of Credit' means any standby letter of credit
               issued by the Bank pursuant to Paragraph 2.2 of this Agreement,
               either as originally issued or as the same may from time to time
               be supplemented, modified, amended, renewed or extended.

                    see `Letter of Credit Obligations' means at any time the sum
               of (a) the Outstanding Letters of Credit, plus (b) the amount of
               all unreimbursed drawings under all Letters of Credit.

                    see `Outstanding Letters of Credit' means, as of any date of
               determination, the aggregate face amount of all Letters of Credit
               outstanding on such date minus the aggregate amount, if any, paid
               in cash by Bank under such Letters of Credit that has been
               reimbursed by Borrower."

               (b) In the definition of "Cash Flow," the phrase commencing with
     the word "minus" on line 8 thereof is amended to read as follows:

                    ". . . minus cash income taxes paid during that fiscal year,
               excluding cash income taxes not exceeding $1,500,000 associated
               with the capital gains realized from Borrower's sale of the 3dbm
               subsidiary during fiscal year 1998, . . ."

               (c) The definition of "Line of Credit" is amended to read as
     follows:

                    "`Line of Credit' means the credit facility for Loans and
               Letters of Credit described in Article 2 of this Agreement."

               (d) In the definition of "Loan Documents," the phrase "the
     Letters of Credit" is added immediately following the phrase "the
     Guaranty."

               (e) The definition of "Maximum Amount" is amended to read as
     follows:

<PAGE>   2

                    "`Maximum Amount' means, as of any date of determination
               thereof, the Line Commitment minus the Letter of Credit
               Obligations."

               (f) The definition of "Term of this Agreement" is amended to read
     as follows:

                    "`Term of this Agreement' means the period commencing on the
               Restatement Date and ending on the last date upon which no Loan
               or other Obligation of Borrower to Bank remains unpaid, no Letter
               of Credit remains outstanding, and Bank has no further commitment
               hereunder to make the Line of Credit available to Borrower."

               (g) In the definition of "Total Funded Debt," commencing at line
     11 thereof, the phrase beginning with the words "Contingent Obligations" is
     amended to read as follows:

                    ". . . Contingent Obligations under any guaranties of the
               obligations of any Person other than Borrower's Subsidiaries or
               Affiliates, Outstanding Letters of Credit (minus Cash and Cash
               Equivalents of Borrower and its Subsidiaries),. . ."

               (h)  The definition of "Total Outstandings" is amended to read as
     follows:

                    "`Total Outstandings' means, as of any date of
               determination, the sum of (a) all outstanding Loans and (b) the
               Letter of Credit Obligations."

          2.2 Paragraph 2.2 of the Agreement is amended in its entirety to read
as follows:

               "2.2 Letters of Credit. Subject to the terms and conditions
     hereof, at any time and from time to time from the Restatement Date through
     the Banking Day immediately preceding the Termination Date, Bank shall
     issue such Letters of Credit as Borrower may request, provided that, upon
     giving effect to such Letter of Credit (i) Total Outstandings shall not
     exceed the Line Commitment, and (ii) the Letter of Credit Obligations shall
     not exceed $1,000,000 for standby Letters of Credit. Unless Bank otherwise
     consents in writing, the term of any standby Letter of Credit shall not
     exceed 24 months, and shall in no event in any case extend more than 12
     months beyond the Termination Date. No Letter of Credit shall be issued
     except to the extent reasonably necessary in the ordinary course of the
     business of Borrower or its Subsidiaries, and no Letter of Credit shall be
     issued in any event to support any workers' compensation obligation of
     Borrower or its Subsidiaries. Unless otherwise agreed to by Bank, the face
     amount of any Letter of Credit shall not be less than $25,000.

Borrower agrees:

               (a) if there is a default under this Agreement, to immediately
     prepay and make Bank whole for any outstanding Letters of Credit.

               (b) the issuance of any Letter of Credit and any amendment to a
     Letter of Credit is subject to Bank's written approval and must be in form
     and content satisfactory to Bank and in favor of a beneficiary acceptable
     to Bank.

               (c) to sign Bank's form Application and Agreement for Standby
     Letter of Credit with respect to each Letter of Credit.

               (d) to allow Bank to automatically charge its checking account
     for applicable fees, discounts, and other charges.

               (e) to pay Bank a non-refundable fee equal to 1.50% per annum of
     the outstanding undrawn amount of each standby Letter of Credit, payable
     annually in advance, calculated on the basis of the face amount outstanding
     on the day the fee is calculated.

               (f) to pay to Bank the amount of any payment made or to be made
     by Bank under any Letter of Credit, upon Bank's demand; and, if Borrower
     fails to make any such payment, Bank may, but is not required to, without
     notice to or the consent of Borrower, make a

<PAGE>   3

     Loan in an aggregate amount equal to the amount paid by Bank on the
     relevant Letter of Credit, whether or not the same would cause Total
     Outstandings to exceed the Line Commitment (without waiving the obligation
     of Borrower to reduce Total Outstandings to an amount less than or equal to
     the Line Commitment) and, for this purpose, the conditions precedent set
     forth in Article 8 and the amount limitations set forth in Paragraph 2.1
     shall not apply. The proceeds of such Loan shall be paid to Bank to
     reimburse it for the payment made by it under the Letter of Credit.

               (g) Subject to the next sentence, a Letter of Credit may be
     requested pursuant to this Paragraph 2.2 for the account of Borrower or for
     the account of any Subsidiary of Borrower. To the extent that a Subsidiary
     of Borrower is the account party under any Letter of Credit, Borrower
     hereby guarantees the payment and performance of such Subsidiary with
     respect to any Obligation of such Subsidiary relating to such Letter of
     Credit, and agrees to deliver to Bank, duly executed and in form and
     content acceptable to Bank, a duly executed continuing guaranty further
     evidencing the foregoing guaranty, together with a resolution or other
     evidence of the corporate authority of Borrower to execute, perform and
     deliver such continuing guaranty.

          2.3 In Paragraph 4.13 of the Agreement, the phrase ", or in connection
     with the issuance of any Letter of Credit," is added in the third line of
     said paragraph immediately following the word "Loan."

          2.4 Paragraph 5.9 of the Agreement is amended in its entirety to read
     as follows:

               "5.9 Use of Proceeds. Use the proceeds of the Line of Credit for
          the following purposes only: (i) for working capital purposes of
          Borrower and its Subsidiaries, (ii) to issue Letters of Credit, (iii)
          for other lawful corporate purposes in the ordinary course of
          business, and (iv) to finance Permitted Acquisitions."

          2.5 Paragraph 6.3 of the Agreement is amended by deleting the period
     at the end of the paragraph and adding the following:

               "; provided, further, however, that the amount of the following
          transactions shall not be included in calculating the amount of
          redemptions or repurchases of shares permitted under clause (c) of
          this Paragraph 6.3: common stock repurchases that (i) occurred prior
          to January 1, 1999 or (ii) are financed exclusively from balance sheet
          cash derived from sources other than Loans under this Agreement."

          2.6 All references to Letters of Credit in Paragraph 9.2 of the
     Agreement, previously deleted pursuant to Paragraph 2.9 of the Second
     Amendment, are hereby fully reinstated.

          2.7 All references to Letters of Credit in Paragraph 10.8 of the
     Agreement, previously deleted pursuant to Paragraph 2.10 of the Second
     Amendment, are hereby fully reinstated.

     3. Representations and Warranties. When the Borrower signs this Amendment,
the Borrower represents and warrants to the Bank that: (a) there is no event
which is, or with notice or lapse of time or both would be, a default under the
Agreement, (b) the representations and warranties in the Agreement are true as
of the date of this Amendment as if made on the date of this Amendment, (c) this
Amendment is within the Borrower's powers, has been duly authorized, and does
not conflict with any of the Borrower's organizational papers, and (d) this
Amendment does not conflict with any law, agreement, or obligation by which the
Borrower is bound.

     4. Conditions. This Amendment will be effective when the Bank receives the
following items, in form and content acceptable to the Bank:

          4.1 An amendment fee in the amount of $5,000.00.

          4.2 An Instrument of Joinder, duly executed by Ducommun Technologies,
     Inc., together with corporate resolutions authorizing such guaranty by
     joinder, certified by their respective Secretary or Assistant Secretary.

<PAGE>   4

          4.3 Evidence that the execution, delivery and performance of this
     Amendment by the Borrower has been duly authorized.

     5. Effect of Amendment. Except as provided in this Amendment, all of the
terms and conditions of the Agreement shall remain in full force and effect.

     This Amendment is executed as of the date stated at the beginning of this
Amendment.

                                        Bank of America National Trust
                                        and Savings Association

                                        By: /s/ J. Thomas Fagan
                                            ------------------------------------
                                            J. Thomas Fagan
                                            Vice President

                                        Ducommun Incorporated

                                        By: /s/ K. R. Pearson
                                            ------------------------------------
                                            Kenneth R. Pearson
                                            Vice President--Human Resources
                                            and Assistant Secretary

                                        By: /s/ J. S. Heiser
                                            ------------------------------------
                                            James S. Heiser
                                            Vice President, Treasurer,
                                            Secretary, and
                                            Chief Financial Officer

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