Wade Bequest: DER triode radio valve
Wade Bequest collection of valves: DER triode radio valve, by Marconi-Osram. Early dull emitter triode valve. With BBC stamp and serial number 11499. With B4-3 base and top seal. Paper label: W17.
- Collection Unassigned
- Object Number:
- triode valve
- object genre
- component parts
- electrical component
- Wade, J.C.F.
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