McVitie Weston valve collection, Mullard valve, type LF
1924
McVitie Weston valve collection, Seddig triode valve
circa 1917
McVitie Weston valve collection, Siemens-Halske triode valve
circa 1917
McVitie Weston valve collection, Siemens-Halske triode valve
1918
McVitie Weston valve collection, Seddig triode valve
1922
McVitie Weston valve collection, Siemens-Halske triode valve
1917
McVitie Weston valve collection, Mullard ORA valve
1923
McVitie Weston valve collection, Marconi WT Co Round valve, type V24
1916
McVitie Weston valve collection, Telefunken valve, type EVE173
1918
McVitie Weston valve collection, Mullard valve, type PM3
1926
McVitie Weston valve collection, Marconi Osram valve, type L.S.3
1924
McVitie Weston valve collection, MOV valve, type V.24
1919
Home Nursing Proficiency Certificate
1915
McVitie Weston valve collection, Osram valve, type L.M.11
circa 1923
McVitie Weston valve collection, Marconi WT Co valve, type V24
circa 1919
McVitie Weston valve collection, Marconi WT Co Round valve, type V.24
1919
McVitie Weston valve collection, Mullard valve, type DFA4
1925
McVitie Weston valve collection, Myers valve
1924
Pages taken from a First World War photograph album
1914-1918
McVitie Weston valve collection, Western Electric Wecovalve valve, type 4215A
circa 1923
McVitie Weston valve collection, Western Electric Wecovalve valve, type 4215A
1923
McVitie Weston valve collection
1921
McVitie Weston valve collection
1924
McVitie Weston valve collection
1919-1920
McVitie Weston valve collection, Ediswan valve, type E.H.T. 220kV
circa 1920
McVitie Weston valve collection, Royal Ediswan valve, type E.S.11
circa 1918
McVitie Weston valve collection, French fotos valve, type R
1916
McVitie Weston valve collection, white valve valve
1916
McVitie Weston valve collection, Marconi valve, type U4
1926
McVitie Weston valve collection, Royal Ediswan valve, type C
1918
McVitie Weston valve collection, Royal Ediswan valve, type C
1918
McVitie Weston valve collection, Audion valve
circa 1913
McVitie Weston valve collection, Cosmos valve, type S.P.18 (Red)
circa 1926
McVitie Weston valve collection, Cosmos valve, type SP 16 Green
circa 1926
McVitie Weston valve collection, Cunningham valve, type C-299
1924
Wade Bequest collection of valves: four-electrode radio valve by Marconi-Osram
1920
Wade Bequest collection of valves: experimental radio valve, 1918
1918
McVitie Weston valve collection, Cleartron valve, type C.T.215 S.G.
circa 1925
Wade Bequest collection of valves: World War One German triode radio valve
1916
Wade Bequest collection of valves: early tetrode radio valve by Marconi-Osram
1916
McVitie Weston valve collection, Ramsay C.R.T. (Experimental) valve
1923
McVitie Weston valve collection, Marconi valve, type Q
1916
Claudel-Hobson Type AV 48 B Carburettor from the Armstrong Siddeley ''Genet'' Aero Engine
1926
Wade Bequest collection of valves: R4 triode radio valve
1917
McVitie Weston valve collection, Marconi WT Co Round valve, type V.24
1916
McVitie Weston valve collection, Marconi Osram valve, type DE5
1924
McVitie Weston valve collection, Marconi valve, type DE5
1924
McVitie Weston valve collection, GEC/USA valve, type C.302
1923
McVitie Weston valve collection, BTH valve, type B
1925
McVitie Weston valve collection, GEC/USA valve, type C.G.1162/VT-16
1918