In specific applications usually indicated by context. Electronics. A sealed container, evacuated or gas-filled, containing two or more electrodes…
| 单词 | θ78461 |
| 释义 | the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [noun] (80) tube1859 In specific applications usually indicated by context. Electronics. A sealed container, evacuated or gas-filled, containing two or more electrodes… valve1905 Electronics. = thermionic valve at thermionic, adj. thermionic valve1909 Of, pertaining to, or employing electrons emitted from an incandescent surface; thermionic valve, an electronic device consisting of an evacuated… bottle1940 colloquial. A thermionic valve. Now historical. Subcategories:— study of (1) — specific quality of (2) — seal at base of (1) — outside covering of (1) — filament (2) — device used for indirect heating of (2) — grid (12) — anode of valve (8) — fluctuation in anode current (12) — specific valve parameter (1) — specific condition of valve (2) — other specific effects (3) — amplification factor of valve (1) — vacuum tube or thermionic valve (28) |
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