WWII Bendix Radio SCR-574-A / SCR-644-A Restricted Maintenance Manual Binder – BC-639-A, BC-638-A, BC-686-A & More (1943)

Original World War II U.S. Army Signal Corps Restricted maintenance manual binder covering the SCR-574-A and SCR-644-A airborne radio systems, manufactured by Bendix Radio, Division of Bendix Aviation Corporation. This reference binder contains multiple original technical manuals dated April–November 1943, published by authority of the Chief Signal Officer.

The binder includes preliminary maintenance instructions and operating information for numerous components used with these airborne radio systems, including:

• Radio Set SCR-574-A
• Radio Set SCR-644-A
• Antennas AN-56-A, AN-56-B, AN-57-A, AN-86-A & AN-96-A
• Frequency Meter BC-638-A
• Radio Receiver BC-639-A
• Amplifier BC-686-A
• Antenna Equipment RC-81-A and associated coaxial cable equipment

Several sections retain their original “Restricted” classification pages, adding to the historical appeal. These manuals were intended for wartime maintenance personnel servicing U.S. Army Air Forces communication equipment and are highly desirable references for collectors of WWII aviation, Signal Corps, Bendix Radio, and military electronics.

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