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| The '''12BY7''' is a miniature 6.5 W power pentode. The '''12BY7A''' (European equivalent '''EL180''') is a compatible and slightly improved version.
| | #redirect[[12BY7A]] |
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| Both are all-glass types with a {{B9A base}} and share the EIA 9BF pinout with a number of other miniature pentode tubes of the era.
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| ==Data sheets and Links==
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| [[File:No64.png|right|9BF socket diagram]] | |
| * [http://w140.com/12by7a.pdf General Electric 12BY7A Datasheet (PDF)]
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| * https://en.wikipedia.org/wiki/12BV7
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| * [http://www.radiomuseum.org/tubes/tube_12by7.html 12BY7 @ radiomuseum.org]
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| ==Used in==
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| * the output stage of the [[1121]]
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| * the first stage of the [[535]], [[545|545A]], and [[555]]
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| ==Pictures==
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| <gallery>
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| 12by7a 1.jpg
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| 12by7a 2.jpg
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| 12by7a 3.jpg
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| </gallery>
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| [[Category:Pentodes]] | | [[Category:Pentodes]] |