12B4: Difference between revisions
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It has a miniature 9-pin base. | It has a miniature 9-pin base. | ||
The | 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)] |