The R1116A dates back to the 1930s and was built to be used along with the T1116 Transmitter. They were installed / fitted in the Sunderland Flying Boats & the well known Fairy Swordfish Aircraft in late 1930s & in the early years of W.W.2
The R1116A is battery operated double-superhet eight valve receiver with a frequency range covering 142 Kc/s to 1600 Kc/s & 2 Mc/s to 20 Mc/s.Used for RT & CW communications it also had DF facilities.

Voltages required to operate the R1116A, were batteries delivering voltages of HT =120 volts, Grid-Bias=10.5 volts & 2 volts for Heaters/Filaments of the valves.

The R1116A & the T1115 were the forerunners of the well-known R1155 & T1154, the main transmitter / receiver communication equipment used in famous Lancaster Bombers during the war.

This picture of the front of the receiver you can see the two tuning dails, HF and LF. Yellow is L F, Green is H F The colour code,I think was taken up in the tuning controls etc. of the R1155 / T1154 TX/RX. you can also see the thick red lead with the socket on the end, that is the audio output for headphones / speaker,it comes out at the rear of the RX.

Front of the R1116A receiver showing you all the controls of the receiver. If you study the controls on the front panel it gives you a very good insight of the FAMOUS R.A.F. R1116A Receiver.

The receiver with its side panels back on, you can see that the valve cans have been removed and showing the vintage screw on top caps.

Looking down on top of the R1116A you see the six valve screening cans, two of the valves are not screened, (VR44 and VR35 ). The thin red leads top left is the bias battery connection leads.