thermionic valve
Noun
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Noun
thermionic valve (plural thermionic valves)
- (chiefly, historical) An electronic device incorporating electrons from a glowing cathode inside an evacuated glass tube, functioning as a switch, amplifier etc. The British English term for a vacuum tube.
- 2012, George Dyson (science historian), Turing's Cathedral, Penguin 2013, p. 65:
- The age of electronics began in 1906 with Lee De Forest's invention of the vacuum tube, or, as the British (led by John Ambrose Fleming, whose work preceded De Forest's) described it, the thermionic valve.
- 2012, George Dyson (science historian), Turing's Cathedral, Penguin 2013, p. 65:
This text is extracted from the Wiktionary and it is available under the CC BY-SA 3.0 license | Terms and conditions | Privacy policy 0.003