GA3 (Microphone and Receiver Headgear Assembly
No.1 Cdn) - Microphone and headset of British design
manufactured in Canada. Fitted with a 5-point waterproof
snatch plug providing for a quick release connection in
emergency. There was Microphone Hand No.7 employed which was
of the moving-coil type. The headphones were also of the
moving-coil type and were fitted with rubber caps to exclude
external noise.
