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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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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: Vitamin Q directionality ! posted by Interstage Tranny on May 7, 2007 at 18:06:13:
IT, you are right. PIO caps are non-polarized. A reason to hook them one way or the other has to do with noise pickup. Most guys will hook up the outer foil to the connection that is closest to ground. Not in terms of voltage but of impedance. That would be the plate in most cases, so that the cap picks up the least amount of noise.Sometimes it's hard to know which end is connected to the outer foil. A tone generator and a scope can help.
Some of the old VitQ caps do have one end connected to the outer metal case. These don't seem to be but looking at the pictures it does look like the end showing metal would be the outer foil side. (that is, the outer foil that, in this case, is inside the metal case)
Thanks, Tre'
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Follow Ups
- Re: Vitamin Q directionality ! - Tre' 18:49:21 05/07/07 (3)
- Vitamin Q directionality ! - Interstage Tranny 04:07:07 05/08/07 (2)
- Re: Vitamin Q directionality ! - Tre' 12:36:00 05/08/07 (1)
- Tre' & Foil Directionality ... - Interstage Tranny 15:00:14 05/08/07 (1)
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