The R109 Communications Receiver

 

 This set, the "A" version, has the serial number 6800 and must date from some time after 1942 when the series was introduced into service. It uses 8 battery-type octal valves.

There were various versions of this receiver and covering different wavelengths and carrying different controls and features.

The A model covers 2 to 12 MHz, and like the others, is designed to work from 6 volts.

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