Basic Radio is a free introductory textbook on electronics based on tubes. See the editorial for more information....

Gas-Filled Tubes

Author: J.B. Hoag

Up to this point we have assumed that the tubes were so highly evacuated that the passage of electrons through them was unimpeded by collisions with any gas molecules. We shall now study the phenomena which occur when a gas is inserted in a previously highly-evacuated tube.

Last Update: 2009-11-01