WWII U.S. Army Signal Corps Interphone Amplifier BC-709-B

WWII U.S. Army Signal Corps Interphone Amplifier BC-709-B

Original WWII-era U.S. Army Signal Corps Interphone Amplifier BC-709-B with accompanying RC-73 instruction/maintenance manual. Manufactured by Automatic Radio Mfg. Co., Boston, Massachusetts under Order No. 2502-WF-42. Aircraft interphone communication component used in military aviation communication systems during WWII. Excellent early aviation electronics display or restoration piece.

Condition:

Very clean original condition with data plate intact and solid aluminum housing. Includes original instruction manual. Untested surplus condition.