valve
Glass valve on bayonet cap base
McVitie Weston valve collection, MOV/GEC valve, type V.T.45
McVitie Weston valve collection, BTH valve, type A.T.40
McVitie Weston valve collection, Bosch Electronics valve
McVitie Weston valve collection, Selenophon valve
McVitie Weston valve collection, King valve
McVitie Weston valve collection, GEC/Osram valve, type CM8
McVitie Weston valve collection, GEC/Osram valve
McVitie Weston valve collection, BTH valve
McVitie Weston valve collection, Lissen Combined with triode valve
McVitie Weston valve collection, Marconi Osram valve, type L.S.5
Split anode magnetron valve, C.W.10, No.364
Stabilovolt 280/80Z
R.A.F. valve, type D, W/T
Present standard four electrode type valve W/T
Early triode valve with electrode-axis vertical
Experimental small Silica triode valve (Mullard)
French "R" valve
R.2 receiving valve made by the G.E.C. about 1916
Two-electrode valve with elliptical anode
R valve
R valve with wide-pitch grid
Valve, MOV E837
Early Marconi V.24 Type Valve Pat.No.28413-18
Osram "C" Valve
Phillips "4 electrode" bright emitter valve
Wireless valve
Early Pliotron Valve, designed by Dr. Langmuir
Wireless valve
McVitie Weston valve collection, Mazda valve, type AC/S2
McVitie Weston valve collection, Mazda valve, type DC2/SG
McVitie Weston valve collection, Cosmos valve, type A.C/S
McVitie Weston valve collection, Mazda valve, type AC/S5
McVitie Weston valve collection, Mazda valve, type AC/S1 VM
McVitie Weston valve collection, Mullard valve, type S4V
McVitie Weston valve collection, Mazda valve, type AC/SGVM
McVitie Weston valve collection, Osram valve, type S215
1929
McVitie Weston valve collection, Raytheon valve, type RK-100
1935
McVitie Weston valve collection, Siemens-Halske valve, type OR
McVitie Weston valve collection, Siemens-Halske valve, type OR
McVitie Weston valve collection, Mullard valve, type PM1DG
circa 1925
McVitie Weston valve collection, Mullard valve, type MM4V
McVitie Weston valve collection, Ediswan valve, type B.S.215
1927
McVitie Weston valve collection, Mazda valve, type S.G.207
McVitie Weston valve collection, RCA Radiotron valve, type 6L6
1937
McVitie Weston valve collection, Osram Catkin valve, type VMS4
1933
McVitie Weston valve collection, Osram Catkin valve, type VMS4
1933
McVitie Weston valve collection, Osram Catkin valve, type VMS4
circa 1930