BBC L1 lip microphone, 1937-1960
1937-1960
Marconi-Sykes magnetophone
1923
Marconi multiple tuner, serial number 6305, 1900-1950
1900-1950
Experimental form of Marconi Company magnetic detector, 1900-1910
1900-1910
Savoy Hill 'Meat Safe' microphone stand
1923
Marconi-Reisz 'Marble' Microphone
1927-30
Marconi-Sykes Magnetophone microphone
1923
Experimental transmitting ‘jigger’ used by the Marconi Company, 1899
1899
Stud field regulator, 1900-1950
1900-1950
'MPB' call sign plaque, 1900-1950
1900-1950
Stud motor starter, 1900-1950
1900-1950
Magnetic key relay, 1900-1950
1900-1950
Horseshoe magnet and keep used with experimental form of magnetic detector, 1900-1910
1900-1910
Rotary convertor, 1900-1950
1900-1950
Wooden pillar insulators, 1900-1950
1900-1950
Receiving ‘jigger’ used by the Marconi Company, 1899
1899
Copper busbars and ebonite insulators, 1900-1950
1900-1950
Bridge telephone, 1900-1950
1900-1950
High frequency sliding inductance on wood base, 1900-1950
1900-1950
Coil type testing buzzer, 1900-1950
1900-1950
Guard lamps on wooden board, 1900-950
1900-1950
Aerial inductances, 1901
1901
Brass earth arrester plates, 1900-1950
1900-1950
Tuning indicator with lamp, 1900-1950
1900-1950
Aerial tuning inductance, 1900-1950
1900-1950
Receiving ‘jigger’ used by the Marconi Company, 1898
1898
Wave shortening condenser in wood case, 1900-1950
1900-1950
Secrecy notice for telegrams, 1900-1950
1900-1950
Buzzer key, 1900-1950
1900-1950
Iolanda transformer in wooden box, 1900-1950
1900-1950
Fixed gap discharger, 1900-1950
1900-1950
Billi condenser used for aerial tuning in Newfoundland, 1901
1901
Billi condenser used for aerial tuning in Newfoundland, 1901
1901
High-frequency chokes, 1900-1950
1900-1950
Low frequency iron core inductance, 1900-1950
1900-1950
Main transmitting condenser in wooden case, 1900-1950
1900-1950
BBC Marconi AXBT ribbon microphone
1944-1959
Marconi magnetic detector No. 12739 with cover, 1900-1950
1900-1950
V2A Marconiphone receiver (long-range model) , 1922-1924
1922-1924
Main part of Marconi 1.5KW transmitter from 2LO
1922-1925
Marconi magnetic wireless detector
1903-1907
Picture and waveform monitor and camera control chassis for the Marconi Mk II television camera, 1950-1955
1950-1955
Steel Iolanda switchboard, with light bulb and shade
1900-1950
Marconi magnetic detector No. 12739 with cover, 1900-1950
1900-1920
Centre-zero moving-coil galvanometer marked Griffin and George Ltd.
1954-1980
Moving-coil voltmeter in angled wooden stand
1945-1954
Crompton Parkinson A C test meter set
1926
BBC ribbon microphone
circa 1945
Combined black-and-white television and radio receiver
circa 1939
Hoffman medium type thrust bearing
1925