McKay artificial left arm
1920
Wooden prosthetic hand with rigid fingers
circa 1920
Radio tuning coil No. 150, 1922-1923
1922-1923
Radio tuning coil No. 100, 1922-1923
1922-1923
Radio tuning coil No. 300, 1922-1923
1922-1923
Radio tuning coil No. 200, 1922-1923
1922-1923
Demonstration radio receiver
1926
Mink G goods van
1931
Novelty model
1955; 1830
Ship's bell, Southern Railway
1930
Lap Scales
circa 1920
model locomotive, London & North Western Railway
1925
Replica of Morse's second model of telegraphy apparatus, 1934
1934
Infant death rate and income
1926-1928
Glass-stoppered bottle containing uranium
1801-1892 (prepared); 1946 (element replaced)
General Electric CA101 Pilotron triode (McVitie Weston valve collection), 1918
1918
Sectioned model steam locomotive boiler
circa 1920
British War medal - G.F.W. Keen
1920
Train indicator board, Great Western Railway
1930
Handlamp, London & North Eastern Railway and Great Eastern Railway
1927
Brass worksplate no 1982, Manning Wardle & Co
1920
Ceramic milk jug, London & North Eastern Railway
1924
Locomotive worksplate
1920
Model dumping wagon
1920-1928
Side dish
1931
Replica of Daguerre-Giroux camera
1839 (original); circa 1988 (replica)
Earth thermometer with bent stem, c. 1925.
1925
Portable thermometer screen
1925
Child's china tea plate, 1922-1923
1922-1923
Primax moving iron loudspeaker, 1924-1927
1924-1927
Card of Authority to use portable receiver, 1922
1922
Three-valve radio receiver, 1922-1925
1922-1925
Thorpe 4-electrode valve (McVitie Weston valve collection) 1924
1924
V2A Marconiphone receiver (long-range model) , 1922-1924
1922-1924
Cosmos DE.11 general-purpose triode valve (McVitie Weston valve collection), 1924
1924
Selector super portable broadcast receiver, 1925-1930
1925-1930
Amplifying valve type V24, 1920-1922
1920-1922
Ora wireless receiving triode, 1921
1921
Novelty crystal radio set, 1925-1930
1925-1930
Experimental television receiver used by JL Baird in demonstration, made 1925-1926
1925-1926
Popular Wireless no. 1 vol. 1, 1922
1922
Lissen Headphones, 1922-1930
1921-1930
K.L.1 ungettered valve, 1920-1927
1920-1927
Main part of Marconi 1.5KW transmitter from 2LO
1922-1925
Nelson multi A valve (McVitie Weston valve collection), 1920-1930
1920-1930
Cossor Wurncell W.1 output triode valve (McVitie Weston valve collection), 1923
1923
Bell from Cable Ship 'Faraday', 1923
1923
No. I.T. Morse tape printer, 1925
1925
Self-winding wristwatch by John Harwood
1928
Hollerith 45 column horizontal electrical sorting machine, 1920-1930
1920-1930