Wade Bequest collection of valves: Marconi-Osram Valve radio valve MHL4

maker:
Marconi Osram Valve Company Limited
SMG00237738

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SMG00237738
Science Museum Group
© The Board of Trustees of the Science Museum

Wade Bequest collection of valves: Marconi-Osram Valve radio valve MHL4. WIth B5 base.

Details

Category:
Collection Unassigned
Object Number:
1972-343/135
credit:
Wade, J.C.F.