Flux Gate Gyro Master Compass Indicator, AN5752-2, WWII B-17, B-24, B-29 OH-6 Cayuse It comes with side service

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

this isn't aeronautical

ask questions

but includes "12V DC"

This is an excellent specimen of the Contact Altimeter (Kontakt-Hohenmesser) Fl

Flux Gate Gyro Master Compass Indicator, AN5752-2, WWII B-17, B-24, B-29 OH-6 Cayuse It comes with side serviceThe 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