Antenna, Mast VHF Type AN-74, for SCR-522 VHF Radio, B-17, B-25 Spitfire The field of view of

The field of view of the ball turret gunner was actually quite poor and it wasn't difficult for the gunner to lose orientation with respect to the direction of the aircraft

this indicator appears to have a production year of 1937 (3768/37)

requiring a 24v input using the side mounted connection

According to the Airborne Radio Equipment Handbook of the Air Service Command dated 1943

Antenna, Mast VHF Type AN-74, for SCR-522 VHF Radio, B-17, B-25 Spitfire The field of view ofThis is a fine example of a AN 74 VHF Mast Antenna as used for the SCR 522 airborne radio system during WWII. The SCR 522 VHF Radio Set was used in various early versions of US Army Air Corps Force aircraft models such as B 17 and B 25 bombers, as illustrated in the Airborne Radio Equipment Handbook dated 1943 (see illustrations). It is similar to the more common AN 104 Mast Antenna used in later aircraft versions. This radio set was intended for use