vacuum tube
Illustration representing parts of a diode vacuum tube utilizing a directly heated cathode.
Meaning
Noun
- A type of electron tube that controls electron current through vacuum between electrodes within a sealed container, usually of glass or metal and often designed to be easily installed in and removed from the equipment in which it is used.
Related
Similar words
- thermionic valve or simply: valve (Britain and some other regions)
- electron tube
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Modern English dictionary
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