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 12SA7
Wade Bequest collection of valves: RCA radio valve type 12SQ7
Wade Bequest collection of valves: type LZ319 / PCF80 radio valve
Wade Bequest collection of valves: Edison model 501 type IJB-1861 delay relay 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: 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: experimental 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
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: 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: Early triode radio valve described as 'soft' Silver valve
Wade Bequest: DE6b triode radio valve with green tint
Wade Bequest: DER triode radio valve
Wade Bequest collection of valves: Cossor type 6AK8 radio valve
Wade Bequest collection of valves: R4 triode radio valve
1917
Wade Bequest collection of valves: unknown radio valve
Wade Bequest collection of valves: GEC type U339 radio valve
Wade Bequest collection of valves: Marconi-Osram Valve radio valve X41
Wade Bequest collection of valves: Mazda type DD620 radio valve
Wade Bequest collection of valves: Western Electric radio valve Type 394A
Wade Bequest collection of valves: radio valve VU120A
Wade Bequest collection of valves: Sylvania radio valve 1625
Wade Bequest collection of valves: RENS1204 radio valve
Wade Bequest collection of valves: unknown radio valve
Wade Bequest collection of valves: VHF radio valve
Wade Bequest collection of valves: unknown radio valve
Wade Bequest collection of valves: radio valve Type 8
Wade Bequest collection of valves: Cosmos type AC radio valve
Wade Bequest collection of valves: Clarion radio valve type LP2
Wade Bequest collection of valves: R valve
Wade Bequest collection of valves: Ediswan radio valve type DLS4
Wade Bequest collection of valves: Rogers Valve radio valve type VT61
Wade Bequest collection of valves: Western Electric Type 357A
Wade Bequest collection of valves: EIMAC radio valve type VC12-32
Wade Bequest collection of valves: radio valve
Wade Bequest collection of valves: radio valve
Wade Bequest collection of valves: German radio valve
Wade Bequest collection of valves: early R-type triode radio valve
