Reception Set R109

When I purchased my R109 in the mid 1950s, it was to me the ultimate receiver. Not only it operated on a 6 volt battery which was very useful at the time, it covered both 80 and 40 meter amateur bands, it made a mysterious noise (the vibrator), it cost not much and, most important, its appearance was very exiting. I still have got this receiver and kept it working during the time. I used the R109 in the 60s during radio amateur field days (with a home brew transmitter) powered by a small 6 volt battery. The R109 was developed in about 1942 and uses the receiver part of the No. 21 Set. See the photo of this set in the Wireless Set No. 21 section. Operationally it was used as a stand alone field reception set and also in conjunction with Wireless Sender No. 76.

• Powered by 6V battery. Consumption about 1.3 A
• Four versions are recorded to be produced: R109, R109A, R109B and R109C
• R109 and R109C have a frequency coverage of 1.8 to 8.5MHz
• R109A covers 2 to 12MHz
• R109B covers 2.5 to 12MHz
• R109A, B and C have RF gain control only and were principally intended for CW reception as companion of the No. 76 Set.
• A BFO and crash limiter is fitted.