Electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope.  Synonyms: electron tube, thermionic tube, thermionic valve, tube, vacuum tube.
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| Words linked to "Thermionic vacuum tube" :   klystron, tetrode, circuit, control grid, electrical circuit, electrode, plate, magnetron, grid, thermionic tube, television-camera tube, electronic device, gas-discharge tube, anode, acorn tube, electric circuit, television pickup tube, electron multiplier, rectifying valve, pentode, triode, diode, rectifying tube, vacuum tube, X-ray tube, cathode | 
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