Cold cathode
id:
cold-cathode-236-18603567
title:
Cold cathode
text:
A cold cathode is a cathode that is not electrically heated by a filament. A cathode may be considered "cold" if it emits more electrons than can be supplied by thermionic emission alone. It is used in gas-discharge lamps, such as neon lamps, discharge tubes, and some types of vacuum tube. The other type of cathode is a hot cathode, which is heated by electric current passing through a filament. A cold cathode does not necessarily operate at a low temperature: it is often heated to its operating
brand slug:
wiki
category slug:
encyclopedia
description:
Type of electrode and part of cold cathode fluorescent lamp.
original url:
https://en.wikipedia.org/wiki/Cold_cathode
date created:
date modified:
2023-11-14T13:03:11Z
main entity:
{"identifier":"Q814902","url":"https://www.wikidata.org/entity/Q814902"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/c/c6/Gase-in-Entladungsroehren.jpg","width":5249,"height":3000}
fields total:
13
integrity:
15