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