Title :
Recent electron-tube developments
Author_Institution :
Bell Telephone Laboratories, Inc., New York, N. Y.
Abstract :
Electron tubes first were used in telephone systems chiefly for speech transmission; they now are being used extensively for many other purposes. A few specially developed amplifier tubes and some typical tubes used in the nontransmission part of the telephone plant are described in this article.
Keywords :
Anodes; Batteries; Cathodes; Rectifiers; Thyratrons; Wires;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1945.6440816
