The Yellow text on the side says graphite impregnate do not paint.

A classic original T.1154 radio transmitter used in Lancasters as well as high speed launches. The Lancaster was not the only aircraft in which this equipment was installed. They were used extensively in aircraft of all types in the RAF during  WW2.

TRANSMITTERS, Types T.1154, T.1154A, B, C, D, E, F, H, I, K, L, M, and N

Transmitters of the T.1154 series were designed primarily for installation in aircraft, to provide air-to-ground or air-to-air communication by W/T, and in all but two versions by .R /T as well. Series L, however, was intended for installation in high-speed launches, and series D and E were introduced for mobile ground stations. Normally all these transmitters were used with receivers of the R.1155 series'

The aircraft version had an aluminium case for obvious reasons where as the marine version had a steel case. The weight of this unit is 46 lb 10 oz

This version is for marine use as it has a steel case but is identical in all other respects to the aircraft version and will look perfectly at home in an aircraft.

The RAF Marine Branch operated the RAF Air sea rescue (ASR) cover in small fast launches (HSL). During World War II RAF Marine Craft high-speed rescue launches were used extensively in the Air Sea Rescue role, saving over 13000 aircrew and other personnel.

Once the World War II bombing offensive against Germany was underway boats were stationed beneath the bombers' flight path, remaining there in all weathers until the respective Command was clear as to which aircraft had safely returned and which were missing.

T.1154 Radio (pg 2 rad)

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In good original condition.

The R1155 is an English LF and HF superheterodyne receiver covering from 75kHz to 18.5mHz in 5 bands, with D/F (Direction Finding) and homing functions. This receiver started development in 1939 by the Marconi Wireless Telegraph Co and was called the AD.87B/8882B to replace the pre-war T1083 and R1082. The R.A.F. designation was the R1155 and the  corresponding transmitter was the T1154, the first units being installed in June 1940. These were still used into the 1950s. Several companies manufactured them, including Marconi, Ekco, Plessy, Philips, and the Gramophone Co. (EMI). They were fitted to many aircraft like the Avro Lancaster and the deHavilland Mosquito.

They were imported into Australia after the War to be used in Lincoln bombers. Although they were used mainly in aircraft, later in the war they were fitted to small boats (N suffix), and also to vehicles (115, 115B, 130, 131).

N/A

Listed as radio equipment according to air ministry part number reference.

£55

A/M  10AB Listed as misc radio/ Radar equipment see page three reference

A/M 10D/13129

Radio Receiver used in the naval variant of the Spitfire the Seafire. Aiministry crown so pre 1944 manufacture. Very rare looks to be in serviceable condition although I would not know how to test it, complete in original transit case. The frequency knob is removed for transit but is included. It also comes complete with its mounting tray. This receiver is tuned with a winding handle inside the LHS of the Seafire cockpit  You can read more about radios on page 10 reference section.

As early as 1938, Supermarine had approached the Admiralty with a specifically designed Naval version of the Spitfire. However, due to circumstances beyond their control, the Admiralty ordered the Fairey Fulmar as the new aircraft of the Fleet Air Arm. In February and May 1940 the Admiralty asked the Air Ministry for Spitfires but on both occasions they were turned down. However, with the Admiralty's need for a capable carrier-based fighter to take up the task of combating Japanese Zero's or Messerschmitt  the Seafire II could perform that task, this need eventually led to the Fleet Air Arm being provided with the modified Spitfire land-based fighter to take up the combat roll. In 1941 the Air Ministry offered some Mk I Spitfires to the Navy but the Admiralty demanded the latest version in production, the Mk V.

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An immaculate Wartime Gee set with Kings Airministry crown. In very good complete condition. The only issue is ha the Gain button has been snapped off but this should not be to hard to rectify.

Type 95 A/M 10Q/16

GEE was a navigational system that utilised accurately phased pulses from ground based transmitters and it was the brainchild of R. J. (Bob) Dippy, who first set down his ideas on paper in 1937. However the rush to get the Chain Home system operational meant that Dippy's paper lay forgotten until 1940 when an urgent need for Bomber Command to have a reliable system of navigation arose. Dippy's system became operational in early 1942.

GEE was highly effective and accurate as an aid to navigation, but it lacked the pin-point accuracy needed for a bombing attack on a selected target. A British scientist named Alec Reeves rose to the occasion and developed a through-the-clouds bombing technique known as OBOE. Although developed in spite of the earthy comments of doubting-Thomas detractors, OBOE proved to be the most successful of all such techniques developed during World War II. By mid-1944 the principle of OBOE was combined with GEE and a blind bombing technique known as GEE H was developed. Strikes upon difficult-to-hit targets were made by the RAF and the USAAF and Hitler’s war machine was badly crippled by a lack of petroleum products and sorely needed replacements.

£950

A/M Ref: 10T/6040.

An opportunity to acquire a rare Crystal Monitor Type 2, a useful piece of kit designed for use in aircraft to facilitate the initial adjustment and subsequent monitoring of CW transmitters and receivers. It enabled a rapid and accurate shift of operational frequency to be made and a convenient method of making the necessary adjustments for the correction of frequency drift, which could occur during flight.  The monitor operated any one of six spot frequencies in the range from 7.5 m/cs to 1 m/c. 6 quartz crystals for the appropriate frequencies are fitted in the monitor and a seventh or extra position is provided on the panel of the instrument. Any one of the crystals could be utilised by a rotary switch on the front panel. The monitor was powered through the receiver's HT and LT batteries. Used in both the T1083/R1082 and R1155/T1154 radio/wireless operators set-up. These sets were introduced to the RAF in the late 30's and early 1940's and would be used in a wide range of operational aircraft throughout the war. Amongst the photographs is an example of the monitor in situ in a Wellington set-up for illustration purposes. The approximate dimensions of the unit are approximately Width 180mm x H110 mm x Depth 125mm. The cabling and plugs illustrated are included. It weighs less than a Kilogramme. The set appears to be in original condition and I found no evidence of restoration.

This is an extremely rare item and its unlikely you will see one of these available again. It's in superb original condition and totally complete. It was fitted to Lancaster's and other heavy wartime bombers including the USAF B17's. Nicely marked with the Kings airministry crown. It was  used to counter enemy radar. See in situ in a B17 under.

Type W1191A A/M 10T/565

Other special equipment utilized in the Gremlin's bag-of-tricks were powerful electronic jammers. These devices had unusual nicknames like Mandrel, Dina, Jackal, Jostle, and others. Mandrel, for example, was an airborne transmitter tuned to radiate noise over the enemy radar frequencies. This disturbance tended to obscure the size of Allied attacking forces on the enemy's radar screens and also caused the enemy to conclude an attack was imminent when one was not. Another airborne electronic jammer, nicknamed Jackal, was used to jam the German tank communications during the Battle of the Bulge in the winter of 1944-45. Many of the aircraft jamming systems were developed and tested by Allied scientists associated with the American-British Laboratory Division 15 (ABL-15). They were part of the British Telecommunications Research Establishment located at Great Malvern.

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This is the winch for a trailing aerial as fitted to Lancaster's and other heavy bomber's. In excellent condition it still function's perfectly.

For reception of communications signals, the receiver could be operated with either fixed or trailing aerials; a fixed aerial was normally used for the HF ranges, and the trailing aerial for airborne installations on the MF ranges. The trailing antenna mount, just below the leading edge on the port side of the Lancaster. The 'bobbles' are lead weights on the end of the antenna wire.

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 Remote contactor IFF system control box. Fitted to Spitfire's and other aircraft. The unit transmitted a signal for 15 seconds out of every minute thus identifying this aircraft as friendly to the radar operators below. This enabled  fighter command controllers to vector Fighters on to the enemy with two distinct plots. The control box has a clockwork mechanism and plugs into the remote contactor below. The control boxes are much harder to find than the remote contactor.

A mint boxed Remote contactor IFF system. Spitfires had these fitted to the top RHS of the cockpit. The unit transmitted a signal for 15 secs out of every minute thus identifying this aircraft as friendly to the radar operators below. This enabled  fighter command controllers to vector Fighters on to the enemy with two distinct plots.

12 or 24 volt available

An original and very rare item. This is the correct switch for the DF Compass fitted to Lancaster's. This switch is situated on the lower left of the main instrument panel in the Lancaster.

£185

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The picture below is a set up  just for GEE the, above set is for GEE and H2S

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Very early example in very nice condition dated 08/12/40

Believed to be wartime - a power unit fitted to the heavy bombers of the RAF to supply radar/radio systems - possibly H2S or Gee ? Air Ministry Section/Reference no. 10DB/16072 (10DB being the section for radio/radar power units) AM serial 99 , Type 707 , size 9 x 8 x 11inch deep . Appears to be in  good condition inside .

Used in heavy bombers to mount radio and radar equipment. The power unit fits like a glove with rear locking pins. Attached to original wooden base.

Tray only

£65