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

maker:
Marconi Osram Valve Company Limited
SMG00237698

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SMG00237698
Science Museum Group
© The Board of Trustees of the Science Museum

Wade Bequest collection of valves: Directly-heated triode radio valve, by Marconi-Osram. Marked S.R. 56 on bulb. Tubular bulb with B4-2 base and top seal.

Details

Category:
Collection Unassigned
Object Number:
1972-343/94
credit:
Wade, J.C.F.