Vacuum tube
id:
vacuum-tube-226-4324880
title:
Vacuum tube
text:
A vacuum tube, electron tube, valve, or tube is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied. The type known as a thermionic tube or thermionic valve utilizes thermionic emission of electrons from a hot cathode for fundamental electronic functions such as signal amplification and current rectification. Non-thermionic types such as a vacuum phototube, however, achieve electron emission through the photo
brand slug:
wiki
category slug:
encyclopedia
description:
Device that controls current between electrodes
original url:
https://en.wikipedia.org/wiki/Vacuum_tube
date created:
2001-10-30T10:17:21Z
date modified:
2024-09-14T19:47:01Z
main entity:
{"identifier":"Q3574371","url":"https://www.wikidata.org/entity/Q3574371"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/e/e9/Elektronenroehren-auswahl.jpg","width":2468,"height":1200}
fields total:
13
integrity:
16