Wade Bequest collection of valves: Heintz & Kaufman Limited type 4E27 radio valve

PART OF:
Wade Bequest collection of valves
Made:
United States
maker:
Heintz & Kaufman Limited
SMG00237851

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SMG00237851
Science Museum Group
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Wade Bequest collection of valves: Heintz & Kaufman Limited type 4E27 radio valve. Marked 4E27/257-B Gammatron and 22158 on bulb. Marked JAN-4E27 on base. With USL7 base and top pin.

Details

Category:
Electronic Components
Object Number:
1972-343/262
type:
valve
credit:
Wade, J.C.F.