300B
id:
300b-315-1458974
title:
300B
text:
In electronics, the 300B is a directly-heated power triode vacuum tube with a four-pin base, introduced in 1938 by Western Electric to amplify telephone signals. It measures 6.4 in (16 cm) high and 2.4 in (6.1 cm) wide, and the anode can dissipate 40 watts thermal. In the 1980s it began to be used increasingly by audiophiles in home audio equipment. The 300B has good linearity, low noise and good reliability; it is often used in single-ended triode (SET) audio amplifiers of about eight watts out
brand slug:
wiki
category slug:
encyclopedia
description:
Electron amplifier vacuum tube
original url:
https://en.wikipedia.org/wiki/300B
date created:
date modified:
2023-12-09T17:56:41Z
main entity:
{"identifier":"Q4634305","url":"https://www.wikidata.org/entity/Q4634305"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/2/2f/300B_outline_drawing_metric.svg","width":480,"height":770}
fields total:
13
integrity:
15