Gyro Transmitter, AN5751-1, Flux Gate Compass System F8F See photo from the TBM

See photo from the TBM Avenger Pilot Manual dated Nov 1945

with two small lamps intact

or opened and resealed at some point in its journey

This type of compass is mounted horizontally

thru which the bottom stem would protrude

Gyro Transmitter, AN5751-1, Flux Gate Compass System F8F See photo from the TBMThe Gyro Transmitter AN5751 1 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 the wing