This image is a derivative work of the following images: File:Triode_tube_schematic.svg licensed with Cc-by-sa-2.5 2009-10-08T16:24:11Z Beao 612x792 (53543...
DescriptionTriode tube schematic.svg English: Structure of a Triode Vacuum Tube Date created and uploaded 18 Jun 2007 by User:Ojibberish on the english...
