Wade Bequest collection of valves: experimental radio valve

SMG00237669

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SMG00237669
Science Museum Group
© The Board of Trustees of the Science Museum

Wade Bequest collection of valves: experimental tubular radio valve with B4 base and rectangular-shaped wire structure in place of a filament.

Details

Category:
Collection Unassigned
Object Number:
1972-343/40
credit:
Wade, J.C.F.