Crystal set with Braille dial markings, 1929-1935
1929-1935
Passive component plate, type A3, for Sargrove sprayed-circuit radio receiver, 1936-1948
1936-1948
Central Battery transmitter (sectioned), 1903-1926
1903-1926
Radio valve, micromesh type 7A.2, 1932-1933
1932-1933
Burndept Ultra IV wireless receiver, glass back No. 4798, 1923
1923
K.L.1 ungettered valve, 1920-1927
1920-1927
Main part of Marconi 1.5KW transmitter from 2LO
1922-1925
Receiver for Baudot Multiplex type-printing telegraph, 1911-1925
1911-1925
Replica of Morse's second model of telegraphy apparatus, 1934
1934
Billi condenser used for aerial tuning in Newfoundland, 1901
1901
No. I.T. Morse tape printer, 1925
1925
Ekco AD36 radio receiver in phenolic plastic case, 1935
1935
Pair-cased pocket watch in pinchbeck and leather outer casing with verge escapement
1705-1737
Model of LNWR Third Class railway carriage
1907-1917
Model of LNWR Third Class railway carriage
1907-1917
SS Dewsbury worksplate
1910
'Wagon' Boiler, 19th Century
1801-1840 (original); 1901 (model)
Laboratory coat worn by Geoff Tootill
1947
Burroughs Class 4 1000 hand operated adding and listing machine with keyboard for Sterling currency
1925-1935
Burroughs hand operated adding and listing machine
1913
Robinson cup anemometer by Munro
1926-1932
Phillip's Economic Computer
1949
Comptometer by Felt and Tarrant Mfg. Co. Chicago
1915-1920
Child's china tea plate, 1922-1923
1922-1923
First sealed-off travelling wave tube, 1945-1946
1945-1946
General Electric CA101 Pilotron triode (McVitie Weston valve collection), 1918
1918
‘School telephone’ in polished wood case, 1921-1940
1921-1940
Magnifying stereoscope, 1940
1940
Radio valve, 1936-1939
1936-1939
Report on a fact-finding trip leading to the development of the LEO computer, 1947
1947
Card of Authority to use portable receiver, 1922
1922
Three-valve radio receiver, 1922-1925
1922-1925
Marconi Osram DE 5b radio valve, 1920-1937
1920-1937
Experimental Form 1 (Licence to use Wireless Telegraph), 1905
1905
Thorpe 4-electrode valve (McVitie Weston valve collection) 1924
1924
Cosmos DE.11 general-purpose triode valve (McVitie Weston valve collection), 1924
1924
Collection of early valves, 1915-1945
1915-1945
Post Office 332 telephone, 1938
1938
L.S.2 radio valve, 1920-1938
1920-1938
McVitie Weston valve collection, Hivac XL HF triode valve, 1935
1935
Marconi-Reisz transverse-current carbon microphone
1925-1935
200 series dial telephone, 1925-1935
1925-1935
Osram A.T.40 triode valve, 1921-1934
1921-1934
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
BBC printing stamp issued to the Willesden Wireless Company
1922-1924
United States Army Air Force camera
1940-1945
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