Gyro Magnetic Compass & Course Indicator Slaved Type V-4 Sperry 21204 USAF OCAMA Peggy Bomber shows a (+) positive reading

shows a (+) positive reading indicating the current is flowing to the battery (charge)

for example by change of wind direction or surprise enemy action

This was manufactured by Hickock Electrical Instrument Co

The pointers will be aligned once the rotors are fully engaged

Gyro Magnetic Compass & Course Indicator Slaved Type V-4 Sperry 21204 USAF OCAMA Peggy Bomber shows a (+) positive readingThis is a Slaved Gyro Magnetic Compass and Course Indicator Type V 4 made by Sperry spec # 21204. It has a service label from the US Air Force Tinker Air Base's OCAMA (Oklahoma City Air Materiel Area). OCAMA managed repairs and furnished spare parts for the B 52, B 47, C KC 135, and certain other aircraft, but a specific link between this instrument and these aircraft has not been established. It has a serial # prefix of AF 50, likely indicating a