Wade Bequest collection of valves: Marconi-Osram Vavle radio valve type PX4

SMG00237731

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SMG00237731
Science Museum Group
© The Board of Trustees of the Science Museum

Wade Bequest collection of valves: Marconi-Osram Vavle radio valve type PX4. Output triode. With B4/M base and ST bulb.

Details

Category:
Collection Unassigned
Object Number:
1972-343/126
credit:
Wade, J.C.F.