System X circuit board from digital switching subsystem, 1980
1980
'Control indicator group' unit for mobile communications, 1985-2010
1985-2010
Pentex production unit: B switch, 1965-1971
1965-1971
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
Ferrite Core Timer
Radio transmitting set for radiosonde
1973
Baird 'Tin box' Televisor
1930-1940
Expendable Bathythermograph-Underwater Temperature Measuring Device, 1970-1977
1970-1977
Radio transmitting set for radiosonde
1974
'Defiant' Television Teceiver, c 1950
1945-1955
Model MRA 101 tellurometer, 1965-75
1965-1975
Radio transmitter and receiver unit, from Ptarmigan communications
Radio transmitter from Ptarmigan communications system, 1985-2010
1985-2010
Travelling Wave Tube UHF Television Transmitter
1970-1975
Receiver from the Radio transmitter unit from Ptarmigan communications system, 1985-2010
1985-2010
Block of ferrite core by Plessey
Plessey computer LSI 11
1970s
Scale Model of Loop Aerials for 'Atmospherics' ('Sferics') Apparatus, 1950
1950
Reproduction of 'Atmospherics' ('Sferics') Detection Apparatus, 1950
1950