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R1155; MILITARY U.K. (ID = 280253) Receiver-C R1155; MILITARY U.K. (ID = 280270) Receiver-C
R1155; MILITARY U.K. (ID = 280678) Receiver-C R1155; MILITARY U.K. (ID = 879609) Receiver-C
R1155; MILITARY U.K. (ID = 879610) Receiver-C R1155; MILITARY U.K. (ID = 879612) Receiver-C
R1155; MILITARY U.K. (ID = 879613) Receiver-C R1155; MILITARY U.K. (ID = 879614) Receiver-C
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R1155; MILITARY U.K. (ID = 280253) Receiver-C
MILITARY U.K.: R1155 [Receiver-C] ID = 280253 463x243
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For model R1155, MILITARY U.K. (different makers for same model)
Country:  Great Britain (UK)
Manufacturer / Brand:  MILITARY U.K. (different makers for same model)
Year: 1940–1945 Type: Communication/Commercial Receiver (also Amateur)
Valves / Tubes 10: VR99A VR99A VR100 VR99 VR100 VR100 VR101 VR101 VR102 Vi103
Principle Super-Heterodyne (Super in general); ZF/IF 560 kHz
Wave bands Wave Bands given in the notes.
Power type and voltage Other, details in remarks or not known.
Loudspeaker - For headphones or amp.
Power out
from Model: R1155 - MILITARY U.K. different makers
Material Metal case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 16.4 x 11.4 x 9.4 inch / 417 x 290 x 239 mm
Notes 75 kHz to 18.5 MHz in 5 bands; with D/F (Direction Finding) and homing functions. There are several different versions known. External power supply: HT 220V 75mA, LT 6,3V 4A. Aluminium case.
Net weight (2.2 lb = 1 kg) 11.8 kg / 25 lb 15.9 oz (25.991 lb)
Source of data -- Collector info (Sammler)
Literature/Schematics (1) Air Ministry A.P.2548A

Model page created by . See "Data change" for further contributors.

All listed radios etc. from MILITARY U.K. (different makers for same model)
Here you find 102 models, 64 with images and 16 with schematics.


Forum contributions about this model
Threads: 2 | Posts: 2
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mil-gb: R1155; come provarlo ?
Gabriele Seccia

Buonasera , ho acquistato questo ricevitore e vorrei provarlo , ma nn riesco a capire come alimentarlo e dove collegarmi con una eventuale alimentazione e sempre dove collegare un eventuale amplificatore esterno. Sul frontale in basso a destra vi sono dei connettori a pannello , presumo che il tutto vada a collegarsi in quel punto , ma nn ho in mano uno schema specifico che mi indichi dove collegarmi.

qualcuno potrebbe aiutarmi a venirne a capo ? 


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mil-gb: R-1155;
Bo Samuelsson


On order from the Air Ministry (AM), Marconi Wireless Telegraph Company in 1939 started the development of a transmitter/receiver system, the T1154/R1155, based on the AD77/AD6872 which was used in passenger aircraft. By that time Marconi was the leading manufacturer of aircraft radio in England and perhaps in the world. The system was intended for use in heavier military aircraft, and during the second world war it was used in light bombers like the Blenheim and Mosquitio, and in heavy bombers like the Stirling, the Halifax and above all the famous Avro Lancaster.

In the beginning of 1940 the Ministry of Aircraft Production (MAP), accepts the design and the first production set is installed and tested in june that year. Marconi has the overall technical responsibility and E K Cole (Ekco) is responsible for the production. Plessey and EMI are also producing in addition to Marconi and Ekco.

The R1155 was manufactured as models R1155, R1155A, B, C, D, E, F and L, M, N. Of these models R1155, R1155A, B, C, D, E and F were intended for use in aircraft. Model R1155 had no filters, A had the IF traps added and B also had the radar filters. D, E and F were the corresponding receivers with steal case instead of aluminium. C was a model with direction finding circuits working on HF, was taken out of production early, and L, M and N were used in ground stations and vehicles, and in sea vessels for the Coastal Command. When the war finally ended more then 80.000 R1155´s had been delivered!

Receiver Data
The R1155 is a single super with one HF stage and oscillator/mixer, a total of three tuned circuits, and two IF stages. With detector, BFO and AF stages there is a total of 6 valves plus a magic eye as tuning indicator. There are facilities for direction finding and homing and the D/F part has 3 valves.  The set covers 75 to 1500 kHz LF/MF in two bands and 3 to 18.5 MHz  HF in three bands. Bandwidth is 5 kHz @-6 dB and the sensitivity is better than 10 uV on all bands.

Although rather simple the receiver has a remarkably good performance for short and medium wave world radio listening.

My Receiver
I had an R1155 in the end of the 1950s and used it for DX-ing. I eventually sold it when I got married and had children. Now I am retired and I recently bought another R1155 which I have restored to its original state and again I use it for broadcast station DX-ing. The receiver was nearly untouched and after adding the DF valves it is like it came from the factory, probably in 1943. It is an R1155 modified to the A model by retrofitting the IF filter traps. The serial number is 32343.

Further info on my home page

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