McVitie Weston valve collection, STC valve, type CV18
1939
McVitie Weston valve collection, Loewe valve, type WG36
1937
McVitie Weston valve collection, Mazda valve, type VR130A
1939
McVitie Weston valve collection, Mazda valve, type VR130A
1939
McVitie Weston valve collection, Loewe valve, type WG34
1937
McVitie Weston valve collection, Loewe valve, type WG34
1937
McVitie Weston valve collection, Loewe valve, type WG35
1937
McVitie Weston valve collection, Loewe valve, type WG36
1937
McVitie Weston valve collection, Sylvania valve, type 42
1934
McVitie Weston valve collection
circa 1935
McVitie Weston valve collection
circa 1937
McVitie Weston valve collection
c.1937
McVitie Weston valve collection
circa 1935
McVitie Weston valve collection, Tungsram valve, type VX4
1939
McVitie Weston valve collection, Ken-Rad valve, type 6D6
1934
McVitie Weston valve collection, Tungsram valve, type 47
circa 1936
McVitie Weston valve collection, Tungsram valve, type PP222
circa 1936
McVitie Weston valve collection, Mazda valve, type PEN220A
1937
McVitie Weston valve collection, Western Electric valve
1936
McVitie Weston valve collection, STC valve, type 4316A
circa 1936
McVitie Weston valve collection, RCA Radiotron valve, type 35
1934
McVitie Weston valve collection, Tung-Sol valve, type 703A
circa 1936
McVitie Weston valve collection, STC valve, type 4043C
1937
McVitie Weston valve collection, RCA valve, type 6A6
1934
McVitie Weston valve collection, STC valve, type 4043C
1937
McVitie Weston valve collection, RCA valve, type 12A6
1940
McVitie Weston valve collection, MOV valve, type KTZ63
1937
McVitie Weston valve collection, Mazda valve, type NR.94
1939
McVitie Weston valve collection, MOV valve, type KT2
1937
McVitie Weston valve collection, Mazda valve, type HL.41.
1939
McVitie Weston valve collection, Mazda valve, type ARTP.2
1939
McVitie Weston valve collection, Telefunken valve, type EZ11
1946
McVitie Weston valve collection, Mazda valve, type ARTP.2
1939
McVitie Weston valve collection, Mazda valve, type QP230
1939
McVitie Weston valve collection, Mazda valve, type TP22
1935
McVitie Weston valve collection, Tungsram valve, type V013
1936-
McVitie Weston valve collection, RCA Cunningham Radiotron valve, type 1603
1940
McVitie Weston valve collection, Mazda valve, type AC2/PEN/DD
1935
McVitie Weston valve collection, RCA Cunningham Radiotron valve, type 6J7
1940
McVitie Weston valve collection, Telefunken valve, type EF13
1948
McVitie Weston valve collection, Hytron valve, type 6F6(MG)
1940
McVitie Weston valve collection, Mazda valve, type SP1320
1939
McVitie Weston valve collection, Mazda valve, type AC/VP2
1937
McVitie Weston valve collection, RCA Cunningham Radiotron valve, type 6E5
1935
McVitie Weston valve collection, Mazda valve, type AC/VP1
1934
McVitie Weston valve collection, Tungsram valve, type APP4100
1949
McVitie Weston valve collection, Mazda valve, type HL/DD 1320
1939
McVitie Weston valve collection, Sylvania valve, type 6D6
1934
McVitie Weston valve collection, RCA valve, type 6L7
1940
McVitie Weston valve collection, Brimar valve, type 11A2
circa 1938