Title :
Physical Science, Measurement and Instrumentation, Management and Education, IEE Proceedings A
Author_Institution :
Univ. of Wales, Univ. Coll. of Swansea, UK
Abstract :
The author presents a brief survey of the ways in which various electrical problems arising in the late nineteenth and early twentieth centuries were approached without the aid of thermionic valves.<>
Keywords :
history; early twentieth century; electron devices; history; late nineteenth century; thermionic devices;
Journal_Title :
Physical Science, Measurement and Instrumentation, Management and Education, IEE Proceedings A
