Prototype ‘Manpack’ ground terminals, 1980-1989
1980-1989
Light-bulb, filament, carbon
About 1890
Patient side cart, from da Vinci® Classic surgical system
1999-2001
Surgeon console, from da Vinci® Classic surgical system
1999-2001
Stud field regulator, 1900-1950
1900-1950
Steam locomotive No. 1 'Locomotion', Stockton & Darlington Railway
1825
Specimen of the first transatlantic telephone cable, deep sea type, 1956
1956
Mirror galvanometer for the transatlantic telegraph, 1858
1858
Guard lamps on wooden board, 1900-950
1900-1950
Specimen of TAT3 cable, 1963
1963
Telstar maser assembly with magnet, 1962-1967
1962-1967
Technics SL-1210 Mk2 mode quartz synthesizer direct-drive turntable: one of two
1999
BBC L1 lip microphone, 1937-1960
1937-1960
Hedley's experimental model for testing adhesion.
1812
Logic door from a Ferranti Mark I computer, 1951
1951
London & North Eastern Railway Steam Locomotive, 'Flying Scotsman'
1923
Wolferton station master hand lamp
1870-1880
Steam locomotive, entitled Evening Star
1960
Cybernetic tortoise, developed to help with studies on brain function
1950-1952
Specimen of Dover-Calais telegraph cable, 1851
1851
Sample of deep-sea section of first transatlantic cable, 1857-1858
1857-1858
Experimental carbon block microphone, 1878-1890
1878-1890
Specimen of lightweight transatlantic telephone cable, 1961
1961
Atlantic cable specimen, 1865
1865
Powdered graphite microphone, 1878-1890
1878-1890
Experimental carbon pencil microphone, 1878-1890
1878-1890
Sample of deep-sea section of first transatlantic cable, 1857-1858
1857-1858
Sample of submarine telegraph cable, 1866
1866
Experimental microphone, 1878-1890
1878-1890
Experimental microphones with carbon pencils and cups, 1878-1890
1878-1890
Moving magnet galvanometer with dial inscribed "Greenwich Mean Time", 1843-1897
1843-1897
Novelty model
1955; 1830
Billi condenser used for aerial tuning in Newfoundland, 1901
1901
High frequency sliding inductance on wood base, 1900-1950
1900-1950
Desk telephone transmitter and receiver (sectioned), 1926.
1926
Copper busbars and ebonite insulators, 1900-1950
1900-1950
Replica of Bell's 1876 centennial telephone transmitter, 1959
1959
Replicas of Alexander Graham Bell's 1879 'Patent Office' telephone, 1959
1959
Magneto-ringing Ericsson telephone, 1892-1920
1892-1920
Rotary convertor, 1900-1950
1900-1950
Experimental transmitting ‘jigger’ used by the Marconi Company, 1899
1899
Receiving ‘jigger’ used by the Marconi Company, 1899
1899
Selector switch, 1903
1903
Ring transformer, 1892
1892
Two-valve short wave radio - telephonic receiver, 1927
1927
Replicas of Alexander Graham Bell's 1879 'Patent Office' telephone, 1959
1959
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
Stroh's type-printer for Wheatstone ABC communicator, 1870-1881
1870-1881