Wade Bequest collection of valves: Marconi-Osram Valve radio valve Type U52
Wade Bequest collection of valves: GEC Valve radio valve type U50
Wade Bequest collection of valves: Philips "Miniwatt" radio valve type KDD1
Wade Bequest collection of valves: Mazda radio valve type ARP12
Wade Bequest collection of valves: Marconi-Osram Valve radio valve type X61M
Wade Bequest collection of valves: Western Electric Type 357A
Wade Bequest collection of valves: Cosmos 'short path' radio valve
Wade Bequest collection of valves: four-electrode radio valve by Marconi-Osram
1920
Wade Bequest collection of valves: Cossor type SU2150A radio valve
Wade Bequest collection of valves: Westinghouse radio valve type WL417A
Wade Bequest collection of valves: radio valve Type 8
Wade Bequest collection of valves: type CV92 radio valve
Wade Bequest collection of valves: Rogers Valve radio valve type VT61
Wade Bequest collection of valves: EIMAC radio valve type VC12-32
Wade Bequest collection of valves: EIMAC type 15E radio valve
Wade Bequest collection of valves: RENS1204 radio valve
Wade Bequest collection of valves: Western Electric radio valve Type 394A
Wade Bequest collection of valves: Marconi-Osram Valve radio valve type Z63
Wade Bequest collection of valves: early triode radio valve by Marconi-Osram
Wade Bequest collection of valves: early R-type triode radio valve
Wade Bequest collection of valves: Marconi-Osram Valve radio valve type X76
Wade Bequest collection of valves: Cossor type 6AK8 radio valve
Wade Bequest collection of valves: Marconi radio valve type X81
Wade Bequest collection of valves: National Union type 2X2 radio valve
Wade Bequest collection of valves: Marconi Osram type D77 radio valve
Wade Bequest collection of valves: early triode radio valve by Marconi-Osram, 1926
1926
Wade Bequest collection of valves: S625 radio valve
Wade Bequest collection of valves: GEC radio valve type GXU1
Wade Bequest collection of valves: experimental triode radio valve by Marconi-Osram
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: Cosmos type AC radio valve
Wade Bequest collection of valves: unknown radio valve
Wade Bequest collection of valves: radio valve
Wade Bequest collection of valves: 832 type radio valve
Wade Bequest collection of valves: Sylvania radio valve 1625
Wade Bequest collection of valves: Emerson radio valve 6SD7-GT
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: Marconi-Osram Valve radio valve type KT44
Wade Bequest collection of valves: radio valve without base
Wade Bequest collection of valves: radio valve of doorknob-type construction
Wade Bequest collection of valves: Seddig RJW radio valve made in Wurtzburg
Wade Bequest collection of valves: acorn UHF triode radio valve in plastic box
Wade Bequest collection of valves: Marconi-Osram Valve radio valve type KT44
Wade Bequest collection of valves: Marconi-Osram Valve radio valve type D43
Wade Bequest collection of valves: R5v triode radio valve
Wade Bequest collection of valves: Marconi-Osram Vavle radio valve type PX4
