UNITRODE CORPORATION 7 CONTINENTAL BOULEVARD MERRIMACK NEW HAMPSHIRE 03054-4334 TEL (603) 424-2410 [UNITRODE LOGO] FAX (603) 429-8771 August 9, 1993 Mr. Robert L. Gable 35 Sunset Rock Road Andover, MA 01810 Dear Mr. Gable: This letter shall serve as the ...