Royal Air Force R1155A Receiver (Great Britain, 1941-43)

The receiver was mostly used in aircraft, but could also be found on land and at sea. It covered the frequencies from 75kHz to 18.5 MHz divided into five ranges. The ability to receive both modulated and un-modulated signals made it suitable for operating as direction-finding receiver.

IF: 560 KHz
Tubes: VR99A, VR99A, VR100, VR99, VR100, VR100, VR101, VR101, VR102, Vi103