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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: RE: None posted by Wojciech on April 2, 2015 at 18:46:01:
The vacuum rectifier totally dominates overall behavior, when rational hybrid schemes are employed. A SS diode in parallel with a vacuum diode is (IMO) NOT rational. For the series SS diode tweak, I recommend the quite quiet UF4007 instead of the very noisy 1N4007, just in case. However, it may not matter.
All PN junction diodes exhibit a reverse recovery spike (switching noise). You start be selecting types, like UFnnnn, that are pretty quiet to begin with. Then, you either snub or block the small amount of noise that is produced. Blocking is what happens in the series SS diode tweak case.
High PIV Schottky diodes are another good option. They are every bit as quiet as vacuum rectifiers.
Eli D.
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- RE: None - Eli Duttman 20:19:30 04/02/15 (0)
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