Wade Bequest collection of valves: Marconi Osram type N30 catkin radio valve

maker:
Marconi Osram Valve Company Limited

Wade Bequest collection of valves: Marconi Osram type N30 catkin radio valve. With B7g base.

Details

Category:
Electronic Components
Object Number:
1972-343/339
credit:
Wade, J.C.F.

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