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

maker:
Marconi Osram Valve Company Limited
SMG00237700

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SMG00237700
Science Museum Group
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Wade Bequest collection of valves: DEVX directly-heated triode radio valve, by Marconi-Osram. With B4-2 base and top seal. Paper label: W24.

Details

Category:
Collection Unassigned
Object Number:
1972-343/95
credit:
Wade, J.C.F.