Control Unit, Bendix MN-52H, for MN-20E Radio Loop Antenna, RA-10 Receiver H-21 measuring airspeed from 50-400 kilometers/hour

measuring airspeed from 50-400 kilometers/hour (~30-250 MPH)

airspeed indicator

and then read off the estimated range to the gun captain

The knob at the top right provided dial illumination when turned

The letters AC US ARMY are embossed on its face

Control Unit, Bendix MN-52H, for MN-20E Radio Loop Antenna, RA-10 Receiver H-21 measuring airspeed from 50-400 kilometers/hourThis WWII era MN 52H Control Unit, made by Bendix, for the MN 20 or MN 24 rotatable loop antenna, combining directional finding and general radio signal receiving, for the Bendix MN 10 Direction Finding System and RA 10 Radio Receivers as used in some bomber and transport aircraft of the US Army Air Force and US Navy. The azimuth control knob turns and rotates the pointer. The light switch toggles, and the Mazda 323 3V bulb is present. The plastic