Wireless Set Number 11

1, it was designed to be used in fixed locations like regimental field headquarters, as well as in vehicles and tanks.

11 was replaced in tanks by the significantly more capable Wireless Set No.

Originally designed to be used in tanks for short- and medium-range communications, it was later used by the Long Range Desert Group in Libya and Tunisia for long-range communications while deep behind enemy lines.

The Germans reportedly captured several sets in France and put them to use for their own communication needs.

[1] The set was also manufactured in Australia by AWA with different valves and alterations to its circuitry.