Wade Bequest collection of valves: Expanse radio valve

SMG00237716

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SMG00237716
Science Museum Group
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Wade Bequest collection of valves: Expanse radio valve. Marked 6273 on bulb. Double-ended with two wires each end. Paper label: W9.

Details

Category:
Collection Unassigned
Object Number:
1972-343/110
credit:
Wade, J.C.F.