Wade Bequest collection of valves: Marconi Osram type D77 radio valve

SMG00237884

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SMG00237884
Science Museum Group
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Wade Bequest collection of valves: Marconi Osram type D77 radio valve. With B7g base.

Details

Category:
Electronic Components
Object Number:
1972-343/221
type:
valve
credit:
Wade, J.C.F.