Submarine repeater valve, 1950-1960
1950-1960
Submarine repeater pentode P.O. type 10P, 1950-1970
195-1970
Transistor, early British Experimental Device from Pye Radio Research Labs
Early junction transistor (B.T.H.), c.1953
Magnetron block
RCA 955 Acorn UFH triode vale (McVitie Weston valve collection), 1935
1935
Mullard video output pentode, T.S.P.4, 1920-1936
1920-1936
Siemens & Halske AG radio valve, 1884-1936
1884-1936
E.S.75 wireless valve, 1883-1930
1883-1930
S.215 dummy valve, 1920-1929
1920-1929
One of Fleming's first thermionic diode valves, 1889
1889
CV1025 triode, 1906-1965
1906-1965
Mazda QP.240 battery double output pentode valve (McVitie Weston valve collection), 1935
1935
Cossor OM6 pentode valve (McVitie Weston valve collection), 1925-1946
1925-1946
Mullard T.H.4 radio valve, 1936
1936
Mazradia E4M triode valve (McVitie Weston valve collection), 1910-1960
1910-1960
De Forest audion 1906-1915
1906-1915
Fotos triode valve with two top caps (McVitie Weston valve collection), 1916-1972
1916-1972
RCA Radiotron 35 VM RF pentode valve (McVitie Weston valve collection), 1931-1972
1931-1972
Loud speaker valve type L.S.5. W/T, 1923
1923
De Forest Audion soft detector triode (McVitie Weston valve collection), 1906-1972
1906-1972
Ostar-Ganz general-purpose triode valve (McVitie Weston valve collection) 1906-1972
1906-1972
Mullard EF9 VM RF pentode valve (McVitie Weston valve collection), 1939
1939
Submarine repeater pentode, 1950-1970
1950-1970
Submarine-repeater pentode, P.O. type 6P10, 1950-1970
1950-1970
Submarine repeater pentode P.O. type 8P, 1950-1970
1950-1970
Point-contact transistor,type GET 2 c.1953
circa 1953
Osram A.T.40 triode valve, 1921-1934
1921-1934
First sealed-off travelling wave tube, 1945-1946
1945-1946
Passive component plate, type A3, for Sargrove sprayed-circuit radio receiver, 1936-1948
1936-1948
Collection of early valves, 1915-1945
1915-1945
McVitie Weston valve collection, Hivac XL HF triode valve, 1935
1935
Radio valve, 1936-1939
1936-1939
Radio valve, micromesh type 7A.2, 1932-1933
1932-1933
DA 60 RF triode valve, 1929-1972
1929-1972
Post Office PO/VA No. 2 triode valve (McVitie Weston valve collection), 1906-1972
1906-1972
Marconi Osram DE 5b radio valve, 1920-1937
1920-1937
One of Fleming's first thermionic diode valves, 1889
1889
Mullard VP13C thermionic valve, 1934-1988
1934-1988
FE1 valve, 1920-1966
1920-1966
K.L.1 ungettered valve, 1920-1927
1920-1927
CV525 pentode, 1924-1965
1924-1965
Mazda 1R5 heptode valve, 1933-1966
1933-1966
AF triode valve (McVitie Weston valve collection), 1906-1972
1906-1972
Amplifying valve type V24, 1920-1922
1920-1922
Sylvania 1LA6 frequency changer valve, 1931-1966
1931-1966
Emitron 6X4 rectifier, 1931-1966
1931-1966
Western Electric 717A pentode, 1926-1966
1926-1966
Nelson multi A valve (McVitie Weston valve collection), 1920-1930
1920-1930
Raytheon 6D6 VM RD pentode valve (McVitie Weston valve collection), 1934-1972
1934-1972