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                                                                   Exhibit 10.64

                               AMENDMENT TO LEASE



The Lease by and between Equity Property Associates I (Landlord) and HADCO
Corporation (Tenant) dated November 1, 1995, as amended May 1, 1995 for the
Lease area in 12A Manor Parkway, Salem, NH, is hereby amended as follows:

         Amendment No. 1 -- Article I, Section 1.5 Term, insert the following;

                  1.5 Term:   Ten (10) years

                  1.5.1 Scheduled Term Commencement Date:  June 1, 1998

         Amendment No. 2 -- Article I, Section 1.6 Annual Fixed Rent, insert the
         following;

                  1.6 Annual Fixed Rent:  $328,405.00

                            Included Operating Expense Share:  $27,865.00

                            Included Tax Expense Share:  $44,640.00

                  1.6.1 Expense Share Adjustments: The initial Annual Fixed Rent
                  for the Term is based, in part, on the Operating Expense Share
                  and Tax Expense Share. In the event that either the actual
                  Operating Expense Share or actual Tax Expense Share is less
                  than the amounts paid in any year during the term of the Lease
                  (e.g., if real estate taxes applicable to the property
                  decrease below the Tax Expense Share paid), then the
                  difference will be abated to Tenant for that year and the
                  Operating Expense Share or the Tax Expense Share, as the case
                  may be, will be reduced for the next year. The amount of any
                  reduction due Tenant shall be determined at the end of each
                  semi-annual or annual adjustment period, and Landlord shall
                  promptly thereafter either: (i) refund the excess Annual Fixed
                  Rent paid by Tenant for the immediately preceding adjustment
                  period, or (ii) credit to Tenant the excess already paid and
                  apply it to the next installment of Annual Fixed Rent due from
                  Tenant.

                  1.6.2 Annual Base Rent Adjustment: At the end of year five
                  (5), effective June 1, 2003, the Annual Base Rental (Annual
                  Fixed Rent less the Included Operating Expense Share and Tax
                  Expense Share) of $255,900.00 will be adjusted by the rise in
                  the Consumer Price Index (CP-IU), For All Urban Consumers,
                  Boston-Lawrence-Salem, MA-NH. The denominator for the
                  calculation will be the Index figure for May, 1998 and the
                  numerator will be the Index figure for May, 2003. The fraction
                  resulting therefrom will be multiplied by the existing Annual
                  Base Rental to determine the New Annual Base Rental. In no
                  event will the rental amount decrease from the existing Annual
                  Base Rental amount.

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         Amendment No. 3 -- Exhibit C (Original Lease)

                  Delete this Exhibit C in its entirety.

This Amendment is subject to the receipt of $850,000.00 from the Landlord which
represents reimbursement for Tenant finish work done at 12A Manor Parkway,
Salem, NH. Receipt of which will be given in writing and attached hereto.

All other provisions of the Lease are hereby ratified and confirmed.

In Witness Whereof, the parties have executed this Amendment To Lease this 29th
day of May, 1998.

WITNESS:                                 LANDLORD: Equity Property Associates I


/s/ Marie Doherty                        /s/ John W. Merchant
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WITNESS:                                 TENANT: HADCO Corporation


/s/ Marie Doherty                        /s/ Patricia Randall
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