Noun: thermionic valve
- Electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
"Vintage audio enthusiasts prefer amplifiers with vacuum thermionic valves for their warm sound";
- tube, vacuum tube, thermionic vacuum tube, thermionic tube, electron tube
Derived forms: thermionic valves
Type of: electronic device
Part of: circuit, electric circuit, electrical circuit
Encyclopedia: Thermionic valve