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Image
Has Image
101
Non-Commercial Use
11
Category
Radio Communication
130
Electronic Components
10
Cinematography
1
Collection
Kodak Collection
1
Object type
triode valve
141
thermionic valve
78
triode valve; thermionic valve
45
thermionic valve; triode valve
32
tetrode
2
triode valve; tetrode
1
triode valve; thermionic valve; tetrode
1
Maker
Marconi Osram Valve Co
31
British Thomson-Houston Company Limited
10
Marconi Osram Valve Company Limited
10
Metropolitan-Vickers Electrical Company Limited
7
A C Cossor Limited
6
Edison Swan Electric Co. Ltd
5
General Electric Company Limited
5
Burndept Limited
3
Mullard Radio Valve Company Limited
3
Mullard Wireless Service Co. Ltd
3
Place of origin
England
96
England, United Kingdom
96
United States
11
Germany
5
United Kingdom
4
Great Britain
3
Great Britain, United Kingdom
3
Austria
1
Belgium
1
Berlin
1
Date
From
To
filter
Mullard D0.6 triode
Ediswan thermionic triode valve
1923
Marconi Osram thermionic triode valve
1932
Thermionic triode valve
Thermionic triode valve
circa 1920s-1930s
Marconi thermionic triode valve
1927
Marconi thermionic triode valve
1923
Marconi Osram thermionic triode valve
1923
Marconi thermionic triode valve
1923
Marconi thermionic triode valve
1943
Neutron thermionic triode valve
1930
Marconi Osram thermionic triode valve
1927
Mazda triode valve
Wade Bequest: DE6 triode radio valve with blue tint
Wade Bequest: DE6b triode radio valve with green tint
Wade Bequest: DER triode radio valve
Wade Bequest: ORA triode radio valve
Wade Bequest: DER triode radio valve
Edison Swan thermionic triode valve
1932
KTD power amplifier
1918
Marconi thermionic triode valve
1925
Metropolitan-Vickers thermionic triode valve
1925
Thermionic triode valve
1924
Marconi Osram thermionic triode valve
1925
Marconiphone thermionic triode valve
1942
Mullard thermionic triode valve
1928
Marconi Osram thermionic triode valve
1925
Marconi Osram thermionic triode valve
1925
Moorhead thermionic triode valve
1922
British Thomson-Houston thermionic triode valve
1928
Metropolitan-Vickers thermionic triode valve
1925
British Thomson-Houston thermionic triode valve
1924
Cossor thermionic triode valve
1932
Metropolitan-Vickers Cosmos thermionic triode valve
1923
Metropolitan-Vickers Cosmos thermionic triode valve
1925
Ediswan thermionic triode valve
1928
Metropolitan-Vickers Cosmos thermionic triode valve
1925
Thermionic triode valve
Thermionic triode valve
Marconi Osram thermionic triode valve
1935
Marconi Osram thermionic triode valve
1927
Marconi Osram thermionic triode valve
1923
Marconi thermionic triode valve
1923
Marconi Osram thermionic triode valve
1925
Mullard thermionic triode valve
1923
Thermionic triode valve
Fellows thermionic triode valve
1923
Cossor thermionic triode valve
1932
Marconi triode valve
1931
Marconi Osram thermionic triode valve
1925
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