Wade Bequest collection of valves: R4 triode radio valve

Made:
1917
SMG00237608

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SMG00237608
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Wade Bequest collection of valves: R4 triode radio valve. Marked 'Wireless Receiving Valve R.4. Pattern No 4411 serial A5774' on bulb. STS bulb with two flying leads. Paper label: 1917. Paper Label: W28.

Details

Category:
Electronic Components
Object Number:
1972-343/91
credit:
Wade, J.C.F.