Exhibit 99.1
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STATEMENT UNDER OATH OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL
OFFICER REGARDING FACTS AND CIRCUMSTANCES RELATING TO EXCHANGE ACT FILINGS

I, George W. Chamillard, state and attest that:

(1)  To the best of my knowledge, based upon a review of the covered reports of
     Teradyne, Inc., and, except as corrected or supplemented in a subsequent
     covered report:

     o    no covered report contained an untrue statement of a material fact as
          of the end of the period covered by such report (or in the case of a
          report in Form 8-K or definitive proxy materials, as of the date on
          which it was filed); and

     o    no covered report omitted to state a material fact necessary to make
          the statements in the covered report, in light of the circumstances
          under which they were made, not misleading as of the end of the period
          covered by such report (or in the case of a report on Form 8-K or
          definitive proxy materials, as of the date on which it was filed).

(2)  I have reviewed the contents of this statement with the company's audit
     committee.

(3)  In this statement under oath, each of the following, if filed on or before
     the date of this statement, is a "covered report".

     o    Annual Report on Form 10-K filed with the Commission on March 29, 2002
          of Teradyne, Inc.;

     o    all reports on Form 10-Q, all reports on Form 8-K and all definitive
          proxy materials of Teradyne, Inc. filed with the Commission subsequent
          to the filing of the Form 10-K identified above; and

     o    any amendments to any of the foregoing.


 /s/ George W. Chamillard                  Subscribed and sworn to me this
---------------------------                8 Day of August, 2002
George W. Chamillard
Chairman of the Board,                     /s/ Mary E. MacDonald
President and Chief                        -----------------------------------
Executive Officer                          Notary Public
(Principal Executive Officer)
August 8, 2002                             My Commission Expires:

                                           July 10, 2003
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