TM 11-246A Radio Set SCR-503-A Technical Manual (March 1944)

Original World War II War Department Technical Manual TM 11-246A covering the Radio Set SCR-503-A, dated March 30, 1944. The SCR-503-A was a Signal Corps communications and direction-finding radio system used by U.S. military units during WWII for tactical communications and radio navigation functions. This manual contains operating instructions, technical specifications, maintenance information, and servicing procedures for the equipment. Features original wartime publication formatting and military issue construction. A desirable reference manual for collectors of Signal Corps equipment, military radio systems, and WWII communications technology.

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