Recognition Light Control Front Panel, IFF, WW2 P-47 Thunderbolt B-29 The A-9A regulator was a

The A-9A regulator was a low pressure continuous flow regulator (vs the on-demand

It has a service label from the US Air Force Tinker Air Base's OCAMA (Oklahoma City Air Materiel Area)

as well as a hand-written electrical diagram

Adapter rings were also available for fitment of either A-1 or A-2 tilting heads for use as a fixed gunnery gunsight on attack and light bomber plane(c)

They came to us from the estate of a B-17 flight instructor

Recognition Light Control Front Panel, IFF, WW2 P-47 Thunderbolt B-29 The A-9A regulator was aThis front panel of the Recognition Light Control Assembly appeared in nearly all of US Army Air Force aircraft of WWII by the end of the war, including the P 47N Thunderbolt Fighter (see photo of the right side panel of the cockpit indicating the location of the switch box). Used for IFF (Identification, Friend or Foe). The toggles flip perfectly. The keying switch depresses as it should. In very nice condition for its age. Measures ~3 inches by ~3.