Wade Bequest collection of valves: Small R-type triode radio valve without base

SMG00237675

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SMG00237675
Science Museum Group
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Wade Bequest collection of valves: Small R-type triode radio valve without base. With spherical bulb and top seal. With paper label: 1916

Details

Category:
Electronic Components
Object Number:
1972-343/56
type:
valve
credit:
Wade, J.C.F.