WWII 1943 Confidential War Department BC-1239-A Receiver Indicator Radar Manual Cotton specifically designed for the Phalanx

specifically designed for the Phalanx Close-In Weapon System (CIWS)

These are Cold War era Dress Uniform components

Octagonal stamped-metal construction

Proceedings of the Institute of Radio Engineers

WWII 1943 Confidential War Department BC-1239-A Receiver Indicator Radar Manual Cotton specifically designed for the PhalanxOriginal War Department Temporary Technical Manual for the Receiver Indicator BC 1239 A, dated December 1943. The BC 1239 A was a radar receiver indicator component associated with wartime antiaircraft radar equipment. Contemporary military publication indexes specifically list the BC 1239 A and related installation material, confirming its use as a specialized radar component rather than a general radio receiver. This is a particularly desirable