Image
Category
Object type
Maker
Place of origin
Date

Wade Bequest collection of valves: Mazda radio valve type ARP12

Wade Bequest collection of valves: EIMAC type 15E radio valve

Wade Bequest collection of valves: radio valve U329

Wade Bequest collection of valves: RCA radio valve type 12SQ7

Wade Bequest collection of valves: RCA radio valve type 12SA7

Wade Bequest collection of valves: Edison model 501 type IJB-1861 delay relay radio valve

Wade Bequest collection of valves: type LZ319 / PCF80 radio valve

Wade Bequest collection of valves: RCA type 12SK7 radio valve

Wade Bequest collection of valves: type W729 radio valve

Wade Bequest collection of valves: Marconi-Osram Valve radio valve type Z63

Wade Bequest collection of valves: Marconi Osram type D77 radio valve

Wade Bequest collection of valves: Marconi Osram type B319 / PCC84 radio valve

Wade Bequest collection of valves: PCF80 type radio valve, probably by Marconi-Osram

Wade Bequest collection of valves: full-wave rectifier radio valve

Wade Bequest collection of valves: early triode radio valve

Wade Bequest collection of valves: early triode radio valve by Marconi-Osram, 1926

1926

Wade Bequest collection of valves: Early triode valve by Marconi-Osram

Wade Bequest collection of valves: early triode radio valve by Marconi-Osram

Wade Bequest collection of valves: early triode radio valve by Marconi-Osram

Wade Bequest collection of valves: Small R-type triode radio valve

Wade Bequest collection of valves: Small R-type triode radio valve without base

1917

Wade Bequest collection of valves: Small R-type triode radio valve without base

1916

Wade Bequest collection of valves: Very small triode radio valve

Wade Bequest collection of valves: Small R-type triode radio valve without base

Wade Bequest collection of valves: four-electrode radio valve by Marconi-Osram

1920

Wade Bequest collection of valves: early four-electrode radio valve by Marconi-Osram. With B4-3 base

Wade Bequest collection of valves: triode radio valve, by Marconi-Osram

Wade Bequest collection of valves: R-type triode radio valve

Wade Bequest collection of valves: experimental radio valve

Wade Bequest collection of valves: R-type triode radio valve

Wade Bequest collection of valves: full-wave recitifier radio valve

Wade Bequest collection of valves: full-wave rectifer radio valve

Wade Bequest collection of valves: early triode radio valve by Marconi-Osram

Wade Bequest collection of valves: early triode radio valve by Marconi-Osram

Wade Bequest collection of valves: small triode radio valve, by Marconi-Osram

Wade Bequest collection of valves: early triode radio valve, by Marconi-Osram

Wade Bequest collection of valves: early triode radio valve

Wade Bequest collection of valves: experimental radio valve, 1918

1918

Wade Bequest collection of valves: early triode radio valve

Wade Bequest collection of valves: World War One German triode radio valve

1916

Wade Bequest collection of valves: early triode radio valve by Marconi-Osram

Wade Bequest collection of valves: early tetrode radio valve by Marconi-Osram

1916

Wade Bequest collection of valves: pentode radio valve

Wade Bequest collection of valves: UHF radio valve of "Micropup" construction

Wade Bequest collection of valves: unknown radio valve

Wade Bequest collection of valves: Triode radio valve, by Marconi-Osram

Wade Bequest collection of valves: DEVX triode radio valve, by Marconi-Osram

Wade Bequest collection of valves: Early triode radio valve described as 'soft' Silver valve

Wade Bequest: DE6b triode radio valve with green tint

Wade Bequest: DER triode radio valve