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12BY7A: Difference between revisions
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* the output stage of the [[1121]] | * the output stage of the [[1121]] | ||
* the first stage of the [[535]], [[545|545A]], and [[555]] | * the first stage of the [[535]], [[545|545A]], and [[555]] | ||
* [http://w140.com/12by7a.pdf General Electric 12BY7A Datasheet (PDF)] | * [http://w140.com/12by7a.pdf General Electric 12BY7A Datasheet (PDF)] | ||