Ostar-Ganz general-purpose triode valve (McVitie Weston valve collection) 1906-1972
1906-1972
Emitron 6X4 rectifier, 1931-1966
1931-1966
Marconi Osram DE 5b radio valve, 1920-1937
1920-1937
Mullard EF50 Valve, 1939
1939
RCA 955 Acorn UHF triode thermionic valve (McVitie Weston valve collection), 1935
1935
Mazradia E4M triode valve (McVitie Weston valve collection), 1910-1960
1910-1960
Siemens & Halske AG radio valve, 1884-1936
1884-1936
Mullard video output pentode, T.S.P.4, 1920-1936
1920-1936
Mullard T.H.4 radio valve, 1936
1936
CV1025 triode, 1906-1965
1906-1965
Submarine repeater pentode P.O. type 10P, 1950-1970
195-1970
Cossor OM6 pentode valve (McVitie Weston valve collection), 1925-1946
1925-1946
E.S.75 wireless valve, 1883-1930
1883-1930
De Forest Audion soft detector triode (McVitie Weston valve collection), 1906-1972
1906-1972
Mazda QP.240 battery double output pentode valve (McVitie Weston valve collection), 1935
1935
Fotos triode valve with two top caps (McVitie Weston valve collection), 1916-1972
1916-1972
Mullard EF9 VM RF pentode valve (McVitie Weston valve collection), 1939
1939
Loud speaker valve type L.S.5. W/T, 1923
1923
RCA Radiotron 35 VM RF pentode valve (McVitie Weston valve collection), 1931-1972
1931-1972
S.215 dummy valve, 1920-1929
1920-1929
De Forest audion 1906-1915
1906-1915
Submarine repeater valve, 1950-1960
1950-1960
General Electric CA101 Pilotron triode (McVitie Weston valve collection), 1918
1918
Osram W30 VM RF catkin pentode valve (McVitie Weston valve collection), 1935-1972
1935-1972
VT60A triode 807 valve (McVitie Weston valve collection), 1906-1972
1906-1972
CV1092 diode, 1904-1965
1904-1965
Radio valve, micromesh type 7A.2, 1932-1933
1932-1933
CV525 pentode, 1924-1965
1924-1965
FE1 valve, 1920-1966
1920-1966
Submarine-repeater pentode, P.O. type 6P10, 1950-1970
1950-1970
Post Office PO/VA No. 2 triode valve (McVitie Weston valve collection), 1906-1972
1906-1972
McVitie Weston valve collection, Hivac XL HF triode valve, 1935
1935
Cossor Wurncell W.1 output triode valve (McVitie Weston valve collection), 1923
1923
Mullard PM6D output triode valve (McVitie Weston valve collection), 1929-1972
1929-1972
Sylvania 1LA6 frequency changer valve, 1931-1966
1931-1966
AF triode valve (McVitie Weston valve collection), 1906-1972
1906-1972
Nelson multi A valve (McVitie Weston valve collection), 1920-1930
1920-1930
L.S.2 radio valve, 1920-1938
1920-1938
Raytheon 6D6 VM RD pentode valve (McVitie Weston valve collection), 1934-1972
1934-1972
Radio valve, 1936-1939
1936-1939
Cosmos DE.11 general-purpose triode valve (McVitie Weston valve collection), 1924
1924
Amplifying valve type V24, 1920-1922
1920-1922
Ora wireless receiving triode, 1921
1921
K.L.1 ungettered valve, 1920-1927
1920-1927
Thorpe 4-electrode valve (McVitie Weston valve collection) 1924
1924
DA 60 RF triode valve, 1929-1972
1929-1972
Mullard VP13C thermionic valve, 1934-1988
1934-1988
One of Fleming's first thermionic diode valves, 1889
1889
Osram A.T.40 triode valve, 1921-1934
1921-1934
Mazda 1R5 heptode valve, 1933-1966
1933-1966