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

maker:
Allgemeine Elektricitats-Gesellschaft
and
Marconi Osram Valve Company Limited

Wade Bequest collection of valves: Catkin indirectly-heated triode radio valve, by Marconi-Osram. With B5 base and external copper anode. Paper label: W57.

Details

Category:
Electronic Components
Object Number:
1972-343/78
credit:
Wade, J.C.F.

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