Steam locomotive No. 1 'Locomotion', Stockton & Darlington Railway
1825
Logic door from a Ferranti Mark I computer, 1951
1951
Hertzian oscillator, 1890-1894
1890-1894
Sample of four-core telegraph cable connecting Vancouver Island with the mainland
1904
Specimen of TAT3 cable, 1963
1963
Experimental microphone, 1878-1890
1878-1890
Hundred and fifty cable, 1933-1969
1933-1969
Experimental microphones with carbon pencils and cups, 1878-1890
1878-1890
Britannia telephone wire joint specimen, 1900-1980
1900-1980
Telstar maser assembly with magnet, 1962-1967
1962-1967
Stud field regulator, 1900-1950
1900-1950
Specimen of the first transatlantic telephone cable, deep sea type, 1956
1956
Specimen of television cable, 1936
1936
Powdered graphite microphone, 1878-1890
1878-1890
Guard lamps on wooden board, 1900-950
1900-1950
Prototype ‘Manpack’ ground terminals, 1980-1989
1980-1989
Section of TAT-8 transatlantic optical fibre cable, 1989
1989
1500-pair exchange area cable, 1969
1969
Experimental carbon pencil microphone, 1878-1890
1878-1890
Technics SL-1210 Mk2 mode quartz synthesizer direct-drive turntable: one of two
1999
Light-bulb, filament, carbon
About 1890
High frequency sliding inductance on wood base, 1900-1950
1900-1950
Billi condenser used for aerial tuning in Newfoundland, 1901
1901
Desk telephone transmitter and receiver (sectioned), 1926.
1926
Copper busbars and ebonite insulators, 1900-1950
1900-1950
Wall telephone, 1880-1920
1880-1920
Stock Exchange automatic telegraph, 1872-1880
1872-1880
Marconi coherer and Admiralty pattern decoherer, 1900-1910
1900-1910
Wall telephone with battery box, 1880-1940
1880-1940
Mechanical telephone, 1880-1920
1880-1920
Wheatstone automatic tape transmitter, 1840-1860
1840-1860
Bright's bell telegraph, 1855
1855
Magneto-ringing Ericsson telephone, 1892-1920
1892-1920
Rotary convertor, 1900-1950
1900-1950
Coherer, ebonite, with adjustable contacts, 1890-1896
1890-1896
Experimental transmitting ‘jigger’ used by the Marconi Company, 1899
1899
Receiving ‘jigger’ used by the Marconi Company, 1899
1899
Morse key, 1850-1870.
1850-1870
Selector switch, 1903
1903
Ring transformer, 1892
1892
Two-valve short wave radio - telephonic receiver, 1927
1927
Filings coherer, glass tube with side-pocket attached to mounting bracket, 1894-1904
1894-1904
Pentex production unit: B switch, 1965-1971
1965-1971
Impulse sender (dial), 1915
1915
Single-needle telegraph by W. F. Cooke, 1840-1860
1840-1860
Aerial inductances, 1901
1901
Cable for aerial installation, 1930-1962
1930-1962
Henley's magneto electric double needle telegraph, 1848-1852
1848-1852
System X circuit board from digital switching subsystem, 1980
1980
Hand perforator and copy stand for Wheatstone automatic telegraph system, 1890-1910
1890-1910