Electronic Valves.

Features Electronic Valves.

Electronic Valves coding.Thermionic valve or thermionic valve or electronic valve or electronic valve, also sometimes called vacuum tube is an electronic device formed by a high vacuum glass enclosure called an ampoule containing various metal elements.
Tiratron type valves, for high power applications, are filled with gas.Octal Base, Rimlock Base, Noval Base, Miniature Base.