Science Fair Project Encyclopedia
Grid leak
Grid leak is an inherent operating characteristic of triodes and other vacuum tubes. It is the small flow of current through the grid of a tube into the circuit which feeds the grid. This current is caused by the small negative EMF which is present in all vacuum valves as a result of a space charge within the envelope of the tube. The space charge is part of the thermionic effect , which is the fundamental phenomenon behind all vacuum tubes.
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details