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Radar & radio location

Follow the evolution of radar technology, a vital system for detection and location from World War 2 through to the late 20th Century.

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"Walter" or emergency beacon transmitter

Eureka beacon

Phasing unit, type 266 no. 394277

AI23 Airpass Radar

1955-1965

Ferranti Blue Parrot aircraft radar visual display unit

Gee Mark 2 cathode ray tube

Marine Radar Equipment Component

Ferranti type DU2191 display unit

Latitude data converter type K-310-A/2

1966

Radar optical shroud

ASV (Air-to-Surface-Vessel radar) Mk XI for detection of vessels at sea

German emergency dinghy transmitter type N.S.4

Ferranti aircraft radar visual display unit

Transmitter, Type T1131K

1945-1950

Frequency-Scanned Planar-Array Microwave Antenna

1956-1960

Decca windfinding radar

1956

Plessey Mk 5 radar display, with trolley, c. 1968

H2S Radar

1945-1955

Ferranti radar rack connector

1953-1954

Decca airfield radar

1950

Hilger & Watts radar information reader

circa 1958

AI-24 Foxhunter Radar

1970-1990
Copper-plated table-tennis ball, used for the calibration of tracking radars

Copper-plated table-tennis ball

Cossor secondary surveillance radar, type SSR5G, s/n 001, c. 1963

Cossor secondary surveillance radar

1963
Collection of objects and archives relating to Ferranti Cathode Ray Tubes and Display Equipment.

collection of objects and archives

Small portable radar torch (Sprat) in exploded form for exhibition

Small portable radar torch

Eureka equipment comprising:- Transponder vibrator pack. Requires aerials and batteries

Eureka equipment

Doppler radar type 72 - antenna electric unit (Dummy)

Dummy Doppler radar type 72, antenna electric unit

Gee Mark 2 display unit

Gee Mark 2 display unit

Radar station model. Model of early radar station made by Metropolitan Vickers Mark 37 Director, with instruction booklet date c 1944. Model has receiving unit at the bottom with twin direction dishes at the top, painted grey.

Radar station model. Model of early radar station made by Metropolitan Vickers Mark 37 Director

circa 1944
Main components of Naval Radar type 293Q, c. 1945 but including display JCB1P of later date

Main components of Naval Radar type 293Q

1945
Reflex Klystron, later development of the 2K25, type CV2494 KB/Q, serial no. 7248. Manufactured by English Electric Valve Co. Ltd. , c1960.

Reflex Klystron

circa 1960
2K25 Reflex Klystron valve, manufactured by Raytheon, USA, c1950. Type JAN-CRP/ E70201.

2K25 Reflex Klystron valve

circa 1950
S-Band tunable cavity Klystron, CV 3815, No.56, c 1950, maker unknown

S-Band tunable cavity Klystron valve

circa 1950
Portable CVOR - Conventional Very High Frequency Omni Directional Range. Large trailer mounted unit for use in airfields, to guide the landing approach of aircraft through the use of radio direction finding.

Portable CVOR - Conventional Very High Frequency Omni Directional Range

Synthetic Aperture Radar (SAR), 1989-1990, - forerunner of the ASTOR radar system.

Synthetic Aperture Radar (SAR)

1989-1990
An S-Band tunable cavity Klystron, CV 3815, No.443, c 1950, maker unknown.

An S-Band tunable cavity Klystron

circa 1950
External Anode air cooled triode, type VT90 Serial no. P9864, manufactured by NEC Corporation, c1950.

External Anode air cooled triode

circa 1950
Gas Discharge Tube, Type CHS 721A, manufactured by Sylvania, USA, c 1960.

Gas Discharge Tube, c 1960

1955-1965
1/38 model of Plessey Stan 37 Instrument Landing System (ILS), in a glass case

1/38 model of Plessey Stan 37 Instrument Landing System (ILS)

Demonstration showing principle of V.O.R. beacon

Demonstration showing principle of V.O.R. beacon

Tuneable Reflex Klystron valve, development of the 2K25, No. K331/MB 69448. Manufactured by English Electric c1950.

Tuneable Reflex Klystron valve

circa 1950
Radio magnetic indicator, type 106 RNA, 1967/68

Radio magnetic indicator, type 106 RNA, 1967/68

Decca HD516 radar equipment, scanning unit, type 4703 mounted on turning unit, type 651130B

Decca HD516 radar equipment

Decca HD516 radar equipment, display unit, type 4801C

Decca HD516 radar equipment, display unit, type 4801C

Gee Mark 2 transformer

Gee Mark 2 transformer

Gee Mark 2 Receiver

Gee Mark 2 Receiver

Wurzburg radar aerial, folding, trolley-mounted, German, 1939-45

Wurzburg radar aerial

1939-1945
Decca ASMI (Airport Surface Movement Indicating Radar) used at Heathrow from 1967-1989. The object was used to give air-traffic controllers a high-definition picture of the entire airfield. The object was situated on top of the control tower. By giving controllers a pin-point picture of the airfield, including even individual aircraft and vehicles, the airfield could operate in darkness and fog. The high resolution resulted from the very short wavelength used- 8mm.

ASMI (Airport Surface Movement Indicating Radar) used at Heathrow airport

1967
Lorenz standard 'blind approach' radar equipment, including mains and marker beacon receivers (R1124/ R1125) and accessories

Lorenz standard 'blind approach' radar receivers R1124 and R1125 and accessories