Of tungsten, or a valve filament made of tungsten: containing a proportion of thorium, e.g. to enhance electron emission in a valve.
| 单词 | θ78460 |
| 释义 | the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [adjective] > specific types of valve (5) thoriated1922 Of tungsten, or a valve filament made of tungsten: containing a proportion of thorium, e.g. to enhance electron emission in a valve. bright-emitting1924 (of the cathode in a thermionic valve) that operates at a high temperature, and so glows brightly; opposed to dull-emitting at dull, adj. compounds 2. multi-electrode1926 possessing or involving several electrodes; spec. designating a valve in which there are two or more sets of electrodes, associated with separate… variable-mu1930 (of a valve) having an amplification factor that can be varied. planar1937 Electronics. Of a thermionic valve: having plane-parallel electrodes, usually close together. |
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