WWII 1944 TM 11-1082 Signal Generator I-222-A War Department Restricted Manual

Original WWII U.S. War Department Technical Manual TM 11-1082, covering the Signal Generator I-222-A, dated 15 July 1944.

This is an original wartime technical publication for the Signal Generator I-222-A, military electronic test equipment used in connection with radio and communications servicing. The cover retains the prominent WWII-era “RESTRICTED” classification notice.

Of additional interest, this copy contains Change No. 1, dated 27 February 1950, showing that the manual remained in military use after WWII. The change pages provide updated information on vacuum tubes, circuitry, troubleshooting, and equipment modifications.

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