12B4: Difference between revisions

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It has a miniature 9-pin base.
It has a miniature 9-pin base.


The 12B4is used in the [[551]] and [[555]], and as a pass tube in the power supply of the [[513]], [[581]] and [[585]].
The 12B4 is used in the [[551]] and [[555]], and as a pass tube in the power supply of the [[513]], [[581]] and [[585]].


* [http://w140.com/12B4A.pdf 12B4A Datasheet (PDF)]
* [http://w140.com/12B4A.pdf 12B4A Datasheet (PDF)]

Revision as of 23:17, 23 April 2018

The 12B4 is a triode with 5.5 W maximum plate dissipation, 1000 V peak plate voltage, and and 105 mA peak cathode current. It has a miniature 9-pin base.

The 12B4 is used in the 551 and 555, and as a pass tube in the power supply of the 513, 581 and 585.

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