12B4: Difference between revisions
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The '''12B4''' is a triode with 5.5 W maximum plate dissipation, | The '''12B4''' is a triode with 5.5 W maximum plate dissipation, | ||
1000 V peak plate voltage, and and 105 mA peak cathode current. | 1000 V peak plate voltage, and and 105 mA peak cathode current. | ||
It has a | It has a {{B9A 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]]. | The 12B4 is used in the [[551]] and [[555]], and as a pass tube in the power supply of the [[513]], [[581]] and [[585]]. |
Revision as of 10:07, 2 July 2018
![](http://w140.com/tekwiki/images/thumb/1/16/Tek-585-psu-2.jpg/350px-Tek-585-psu-2.jpg)
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 B9A (Noval) 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.