Radio tuning coil No. 1000, 1922-1923
1922-1923
Marconi Mark II television camera head, 1951
1951
Three-valve radio receiver, 1922-1925
1922-1925
Transistorized audio-frequency telephone line amplifier, 1954
1954
Marconi Osram DE 5b radio valve, 1920-1937
1920-1937
Thorpe 4-electrode valve (McVitie Weston valve collection) 1924
1924
V2A Marconiphone receiver (long-range model) , 1922-1924
1922-1924
Set concert coils, 1922-1923
1922-1923
'Radio Celebrities Second Series' cigarette card album, 1934-1940
1934-1940
Cosmos DE.11 general-purpose triode valve (McVitie Weston valve collection), 1924
1924
Specimen of the first transatlantic telephone cable, 1956
1956
Audio trunk cable specimen, 1925-1935
1925-1935
232 telephone, 1934-1957
1934-1957
Selector super portable broadcast receiver, 1925-1930
1925-1930
Picture and waveform monitor and camera control chassis for the Marconi Mk II television camera, 1950-1955
1950-1955
Post Office 332 telephone, 1938
1938
Replica of Bell's 1875 harmonic telegraph transmitter, 1925-1958
1925-1958
Amplifying valve type V24, 1920-1922
1920-1922
Moulded unprocessed Bakelite panel ready for ECME, 1936-1955
1936-1955
L.S.2 radio valve, 1920-1938
1920-1938
Savoy Hill 'Meat Safe' microphone stand
1923
McVitie Weston valve collection, Hivac XL HF triode valve, 1935
1935
Ora wireless receiving triode, 1921
1921
Short-wave adaptor for broadcast receivers, 1935-1936
1935-1936
Marconi-Reisz transverse-current carbon microphone
1925-1935
Radio tuning coil No. 75, 1922-1923
1922-1923
'Radio Celebrities' cigarette card album, 1934-1940
1934-1940
Novelty crystal radio set, 1925-1930
1925-1930
200 series dial telephone, 1925-1935
1925-1935
Crystal set with Braille dial markings, 1929-1935
1929-1935
Radio tuning coil No. 750, 1922-1923
1922-1923
Osram A.T.40 triode valve, 1921-1934
1921-1934
Passive component plate, type A3, for Sargrove sprayed-circuit radio receiver, 1936-1948
1936-1948
Experimental television receiver used by JL Baird in demonstration, made 1925-1926
1925-1926
Popular Wireless no. 1 vol. 1, 1922
1922
Transistorized audio-frequency telephone line amplifier, 1953
1953
Lissen Headphones, 1922-1930
1921-1930
Murphy 14-inch Band I/Band III television receiver, 1954
1954
Moulded unprocessed Bakelite panel ready for ECME, 1936-1955
1936-1955
Replica of Bell's 1875 tuned reed telephone receiver, 1925-1958
1925-1958
Radio valve, micromesh type 7A.2, 1932-1933
1932-1933
Burndept Ultra IV wireless receiver, glass back No. 4798, 1923
1923
BBC printing stamp issued to the Willesden Wireless Company
1922-1924
Panel 1 unit from EDSAC1, 1946-1958
1946-1958
Gecophone Crystal Detector Radio Set No. 1, 1923
1923
End plate assembly for a battery of mercury delay tubes from EDSAC 1, 1946-1958
1946-1948
United States Army Air Force camera
1940-1945
Voigt condenser microphone
1920-1940
K.L.1 ungettered valve, 1920-1927
1920-1927
Main part of Marconi 1.5KW transmitter from 2LO
1922-1925