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Pentex production unit: B switch, 1965-1971

1965-1971

System X circuit board from digital switching subsystem, 1980

1980

'Control indicator group' unit for mobile communications, 1985-2010

1985-2010

Antenna from Ptarmigan communications system, 1985-2010

1985-2010

V2A Marconiphone receiver (long-range model) , 1922-1924

1922-1924

'Snoopy' Telephone, 1981-1989

1981-1989

PROBE UNIT MO 30 sea water sound velocity meter

Telephone handset

1960-1968

Expendable Bathythermograph-Underwater Temperature Measuring Device, 1970-1977

1970-1977

Radio transmitting set for radiosonde

1973

Baird 'Tin box' Televisor

1930-1940

Ferrite Core Timer

Model MRA 101 tellurometer, 1965-75

1965-1975

Radio transmitter and receiver unit, from Ptarmigan communications

Radio transmitting set for radiosonde

1974
Radio transmitter from Ptarmigan communications system used by the British Army, made by Plessey Limited, England, 1985-2010

Radio transmitter from Ptarmigan communications system, 1985-2010

1985-2010
ERNIE II (Electronic Random Number Indicating Equipment), 1973, for generation of Premium Bonds Numbers, manufactured by Plessey.

GPO ERNIE II

1972
Receiver from the Radio transmitter unit from Ptarmigan communications system used by the British Army, made by Plessey Limited, England, 1985-2010

Receiver from the Radio transmitter unit from Ptarmigan communications system, 1985-2010

1985-2010
Core Store, Printed Circuit Boards and Magnetic Tape from the Titan Computer (prototype Atlas 2), developed by Ferranti and the University of Cambridge Mathematical Laboratory, Cambridge, 1963.

Components of the Titan Computer (prototype Atlas 2)

1963
Plessey 200 Watt Travelling Wave Tube UHF Television Transmitter, UK, c. 1970, from the BBC Sutton Coldfield Transmitting Station

Travelling Wave Tube UHF Television Transmitter

1970-1975
Block of ferrite core by Plessey, 1971

Block of ferrite core by Plessey

Two scale models of Plessey 'Sferics' equipment: matched-amplifier unit and display unit for locating thunderstorms, unsigned, Britain, 1950

Reproduction of 'Atmospherics' ('Sferics') Detection Apparatus, 1950

1950
Scale models of 2 loop aerials for 'Sferics' equipment, by Plessey & Co., 1950. Used at the National Physics Laboratory, Teddington, England for locating thunderstorms.

Scale Model of Loop Aerials for 'Atmospherics' ('Sferics') Apparatus, 1950

1950
Plessey computer LSI 11, with Plessey hard-disk drive and a Plessey Kennedy 9000 magnetic tape drive (equivalent of DEC PDP 11).

Plessey computer LSI 11

1970s