Mail Stop 6010


      January 23, 2006


Mr. Gregory Beecher
Chief Financial Officer
Teradyne, Inc.
321 Harrison Avenue
Boston, Massachusetts  02118

	Re:	Teradyne, Inc.
      Form 10-K for the Year Ended December 31, 2004
Forms 10-Q for the Quarter Ended March 31, 2005, June 30, 2005,
and
     September 30, 2005
      File No. 001-06462


Dear Mr. Beecher:

	We have completed our review of your Form 10-K and related
materials and do not, at this time, have any further comments.


	 							Sincerely,



								Martin F. James
								Senior Assistant Chief
Accountant




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