Wade Bequest collection of valves: Marconi-Osram Valve radio valve X41

maker:
Marconi Osram Valve Company Limited

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Wade Bequest collection of valves: Marconi-Osram Valve radio valve X41. Triode hetrode frequency changer. With B7 base and top cap. Silver metallising. ST bulb.

Details

Category:
Collection Unassigned
Object Number:
1972-343/144
credit:
Wade, J.C.F.

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