Flux Gate Gyro Master Compass Indicator, AN5752-2, WWII B-17, B-24, B-29 OH-6 Cayuse but includes "12V DC"

but includes "12V DC"

this isn't aeronautical

as it was known in the United States and Canada

It was used in the H-21 Shawnee/Workhorse Piasecki Helicopter

Flux Gate Gyro Master Compass Indicator, AN5752-2, WWII B-17, B-24, B-29 OH-6 Cayuse but includes "12V DC"The 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