thermionic tube

Noun

1.

thermionic tube - electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope Synonyms: electron tube, thermionic vacuum tube, thermionic valve, vacuum tube, tube

acorn tube, anode, cathode, circuit, control grid, diode, electric circuit, electrical circuit, electrode, electron multiplier, electron tube, electronic device, gas-discharge tube, grid, klystron, magnetron, pentode, plate, rectifying tube, rectifying valve, television pickup tube, television-camera tube, tetrode, thermionic vacuum tube, thermionic valve, triode, tube, vacuum tube, X-ray tube