Vi fant 2 definisjoner av thermionic valve på engelsk.
Noun |
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| thermionic valve - electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope | ||
| tube, vacuum tube, thermionic vacuum tube, thermionic tube, electron tube | ||
| electronic device a device that accomplishes its purpose electronically | ||
| electric circuit, electrical circuit, circuit an electrical device that provides a path for electrical current to flow | ||
| acorn tube a small vacuum tube; used at high frequencies | ||
| anode a positively charged electrode by which electrons leave an electrical device | ||
| cathode a negatively charged electrode that is the source of electrons entering an electrical device | ||
| rectifying tube, rectifying valve, diode a semiconductor that consists of a p-n junction | ||
| electrode a conductor used to make electrical contact with some part of a circuit | ||
| electron multiplier a vacuum tube that amplifies a flow of electrons | ||
| gas-discharge tube a tube in which an electric discharge takes place through a gas | ||
| control grid, grid a cooking utensil of parallel metal bars; used to grill fish or meat | ||
| klystron an electron tube used to generate or amplify electromagnetic radiation in the microwave region by velocity modulation | ||
| magnetron a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators | ||
| pentode a thermionic tube having five electrodes | ||
| plate dish on which food is served or from which food is eaten | ||
| television-camera tube, television pickup tube a tube that rapidly scans an optical image and converts it into electronic signals | ||
| tetrode a thermionic tube having four electrodes | ||
| triode a thermionic vacuum tube having three electrodes; fluctuations of the charge on the grid control the flow from cathode to anode which makes amplification possible | ||
