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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: update posted by vinnie2 on August 1, 2017 at 14:13:12:
Yes, there is a physical left and right side of any dual section tube depending on your viewing angle. But that has nothing to do with electrical performance in a twin section tube.If the two sides are the same, such as a 12AX7, the the only differences would be minor manufacturing tolerances. And even at that the left or right side could be the favorable section depending on the application.
Now there are quite a few dual and triple element tubes with drastically different sections like the driver tube in a Dynaco ST35, a 7247, which IIRC is half a 12AX7 and half a 12AU7. In this case you do have to be careful how it's wired.
But it should not matter much at all which side of a twin tube is used provided you don't violate proper circuit layout as mentioned above. If the two sides are much different in a twin tube, I'd say you have a bad tube!
Edits: 08/01/17
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- Left & Right? - gusser 16:04:55 08/01/17 (0)
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