Heading Selector, Zero Reader C-46 and EC-121 aircraft

and EC-121 aircraft

Since the factory seals are intact over screw heads

It is in exceptional condition given its age and appears to be new old stock

as does the Gyropilot release

Heading Selector, Zero Reader C-46 and EC-121 aircraftThe Zero Reader Heading Selector, made by Sperry part number 672670 2, was a component of the Zero Reader Flight Computer. The Zero Reader was used in a number of Cold War era aircraft of the US Air Force, such as the F 89 Scorpion and F 94 Starfire jet fighters interceptors (see photos from F 89 flight manual showing the location of this instrument). According to the F 94 Starfire Flight Manual: The Zero Reader is an automatic flight instrument that