Flux Gate Gyro Master Compass Indicator, AN5752-2, WWII B-17, B-24, B-29 OH-6 Cayuse e) if the Safe switch

e)  if the Safe switch is selected

but includes "12V DC"

as it was known in the United States and Canada

this isn't aeronautical

It comes with side service markings from Naval Air Station Alameda CA

Flux Gate Gyro Master Compass Indicator, AN5752-2, WWII B-17, B-24, B-29 OH-6 Cayuse e) if the Safe switchThe Master Compass Indicator AN5752 2 was an integral component of the WWII era Bendix Gyro Flux Gate Compass System used in aircraft such as the B 17, B 24, and B 29. The 7 component Flux Gate Compass system was designed to provide accurate navigational guidance using the earth's magnetic forces by minimizing interference from the systems of the aircraft, such as its turrets, guns, and engines. A flux gate gyro transmitter typically located within