Uploaded October 2016 | Updated September 2026, 3 weeks ago
Vacuum tube - Explained and animated with 3d
In electronics, a vacuum tube, an electron tube,[or just a tube (North America), or valve (Britain and some other regions), is a device that controls electric current between electrodes in an evacuated container. Vacuum tubes mostly rely on thermionic emission of electrons from a hot filament or a cathode heated by the filament.
Vacuum tube - Explained and animated with 3d
In electronics, a vacuum tube, an electron tube,[or just a tube (North America), or valve (Britain and some other regions), is a device that controls electric current between electrodes in an evacuated container. Vacuum tubes mostly rely on thermionic emission of electrons from a hot filament or a cathode heated by the filament.










