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
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