Wade Bequest collection of valves: type Y61 radio valve

SMG00237814

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SMG00237814
Science Museum Group
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Wade Bequest collection of valves: type Y61 radio valve. Marked Made & Patented in England / Y61 / BJ P on bulb. Tubular bulb with green tint and I/O base. Tuning indicator, probably made by Marconi-Osram.

Details

Category:
Collection Unassigned
Object Number:
1972-343/210
credit:
Wade, J.C.F.