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

Made:
1915
maker:
Marconi Osram Valve Company Limited
SMG00237642

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SMG00237642
Science Museum Group
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Wade Bequest collection of valves: experimental triode radio valve by Marconi-Osram marked 1915? With B4-3 base and top cap.

Details

Category:
Collection Unassigned
Object Number:
1972-343/16
credit:
Wade, J.C.F.