We found 2 'thermionic valves' adverts for you in 'hobby electronics', in the UK and Ireland
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This advert is located in and around Swadlincote, Derbyshire
1940s Thermionic Transmitting Valve Type: 4-1000A. Excellent condition for age. Over eight inches tall, not including pins.
13 days ago
1940s Thermionic Transmitting Valve Type: 304TH/VT254. Excellent condition for age. About seven inches tall, not including pins.