SECOND AMENDMENT TO LEASE

I.   PARTIES AND DATE

     This Second Amendment to Lease (the "Second Amendment") dated February 12,
1998, is by and between THE IRVINE COMPANY, as successor-in-interest to Carroll
Ridge Park, a California general partnership ("Lessor"), and ELGAR ELECTRONICS
CORPORATION, a California Corporation ("Lessee").

II.  RECITALS

     On February 1, 1984, Lessor and Lessee entered into a lease for space in a
building located at 9250 Brown Deer Road, San Diego, California ("Premises"),
which lease was subsequently amended by a First Amendment to Lease dated
November 5, 1992 (as amended, the "Lease").

     Lessor and Lessee each desire to modify the Lease as set forth in "III.
MODIFICATIONS" next below.

III.      MODIFICATIONS  

     PAYMENT OF REAL PROPERTY TAXES. Effective as of January 1, 1998, Section
15.1 of the Lease entitled "Payment of Property Taxes" shall be deleted in its
entirety and the following shall be substituted in lieu thereof.

     "15. 1. PAYMENT OF TAXES

             (a)    Lessee shall reimburse to Lessor, as additional rent, all
     "Real Property Taxes" (as defined in Section 5.2 below) applicable to the
     Premises during the Term of this Lease. Lessor shall give Lessee a written
     estimate of the amount of Property Taxes for the current calendar year.
     Lessee shall pay the estimated  amounts to Lessor in two (2) installments,
     in advance, on March I and August I of each calendar year. Within one
     hundred twenty (120) days after the end of each calendar year, Lessor shall
     furnish to Lessee a statement showing in reasonable detail the actual Real
     Property Taxes incurred by Lessor during that period, and the  parties
     shall within thirty (30) days thereafter make any payment or allowance
     necessary to adjust Lessee's estimated payments, if any, to Lessee's actual
     owed amounts as shown by the annual statement. Any delay or failure by
     Lessor in delivering any statement hereunder shall not constitute a waiver
     of Lessor's right to require Lessee to pay Real Property Taxes pursuant
     hereto. Any amount due Lessee shall be credited against installments next
     coming due under this Section 15.1, and any deficiency shall be paid by
     Lessee together with the next installment. Should Lessee fail to object in
     writing to Lessor's determination of actual Real  Property Taxes within
     sixty (60) days following delivery of Lessor's expense statement, Lessor's
     determination  of actual Real Property Taxes for the applicable period
     shall be conclusive and binding on the parties and any future


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     claims to the contrary shall be barred.

             (b)  Even though the Lease has terminated and the Lessee has,
     vacated the Premises, when the final determination is made of Real Property
     Taxes for the year in which the Lease terminates, Lessee shall upon notice
     pay the entire increase  due over the estimated expenses paid. Conversely,
     any overpayment made in the event expenses decrease shall be rebated by
     Lessor to Lessee."

IV.  GENERAL

     A.   EFFECT OF AMENDMENTS - The Lease shall remain in full force and effect
          except to the extent that it is modified by this Amendment.

     B.   ENTIRE AGREEMENT - This Amendment embodies the entire understanding
          between Lessor and Lessee with respect to the modifications set forth
          in "III. MODIFICATIONS" above and can be changed only by a writing
          signed by Lessor and Lessee.

     C.   COUNTERPARTS - If this Amendment is executed in counterparts, each is
          hereby declared to be an original; all, however, shall constitute but
          one and the same amendment. In any action or proceeding, any
          photographic, photostatic, or other copy of this Amendment may be
          introduced into evidence without foundation.

     D.   DEFINED TERMS - All words commencing with initial capital letters in
          this Amendment and defined in the Lease shall have the same meaning in
          this Amendment as in the Lease, unless they are otherwise defined in
          this Amendment.

     E.   CORPORATE AND PARTNERSHIP AUTHORITY - If Lessee is a corporation or
          partnership, or is comprised of either or both of them, each
          individual executing this Amendment for the corporation or partnership
          represents that he or she is duly authorized to execute and deliver
          this Amendment on behalf of the corporation or partnership and that
          this Amendment is binding upon the corporation or partnership in
          accordance with its terms.

     F.   ATTORNEYS' FEES - The provisions of the Lease respecting payment of
          attorneys' fees shall also apply to this Amendment.


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V.   EXECUTION

    Lessor and Lessee executed this Amendment on the date as set forth in "I.
PARTIES AND DATE." above.

LESSOR:                                       LESSEE:

THE IRVINE COMPANY                            ELGAR ELECTRONICS CORPORATION,
                                                a California Corporation

By:/s/Clarence W. Barker                      By: /s/Christopher W. Kelford
   -------------------------------------          ------------------------------
   Clarence W. Barker, President,                 Christopher W. Kelford, Chief
   Irvine Industrial Company, a division            Financial Officer
   of The Irvine Company


By:/s/John C. Tsu                             By: /s/Kenneth R. Kilpatrick
   -------------------------------------          -----------------------------
   John C. Tsu, Assistant Secretary               Kenneth R. Kilpatrick, 
                                                    President


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