Control grid
id:
control-grid-197-10527766
title:
Control grid
text:
The control grid is an electrode used in amplifying thermionic valves such as the triode, tetrode and pentode, used to control the flow of electrons from the cathode to the anode (plate) electrode. The control grid usually consists of a cylindrical screen or helix of fine wire surrounding the cathode, and is surrounded in turn by the anode. The control grid was invented by Lee De Forest, who in 1906 added a grid to the Fleming valve to create the first amplifying vacuum tube, the Audion (triode)
brand slug:
wiki
category slug:
encyclopedia
description:
Electrode used to control electron flow within a vacuum tube
original url:
https://en.wikipedia.org/wiki/Control_grid
date created:
date modified:
2023-01-11T20:21:59Z
main entity:
{"identifier":"Q1231614","url":"https://www.wikidata.org/entity/Q1231614"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/6/69/Triode_schematic_labeled.svg","width":339,"height":173}
fields total:
13
integrity:
15