thermionic valve Definition

vacuum tube, tube, electron tube, thermionic tube, thermionic vacuum tube, electrical device, electric current, triode, semiconductor device, glow discharge, electrical circuit, discharge tube, tickler coil, potential difference, induction coil, electric circuit, diode, radio receiver, galvanoscope, photovoltaic effect, electron gun, pentode, crystal set, thermion, parametric amplifier, anticathode, junction transistor, transistor, electric eye, electrode potential, audio system, tetrode, electrical phenomenon, syntonize, electrodynamometer, storage battery, amplifier, electric potential, voltaic cell, selenium cell, vitrite, inductometer, starter motor, electrical resistance, voltammeter, platymeter, series circuit, electric charge, stereoelectric, parallel circuit, carrier wave, catelectrode, opeidoscope, anelectrotonus, stereo system, wollaston prism, scintillation counter, cathode, electrical energy, hydrogode, voltaic battery, stauroscope, thermoelectrometer, infrared lamp, magnetron, mutual induction, arc lamp, rheotrope, radiant energy, anelectrode, rectifier, electronic organ, otheoscope, capacitor, voltagraphy, tasimeter, peltier effect, zener diode, heteropolar, rheophore, thermionic, pyroelectricity, microtasimeter, electrophone, knife switch, telethermometer, glow lamp, bude burner, gas mantle, synchroscope, electric organ, cathode ray, mutual inductance, primary coil, electrepeter, voltage, inducteous, heat ray, circuitry, voltameter,