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RE: Schottky

My affection for that part is based on the excellent diode testing article done for Audio Amateur a number of years back. Rick Miller (who has excellent credentials but I can't recall them off hand) showed clearly the near total lack of PN burst noise in the GI diodes even when compared to "fast" diodes. He pointed out that speed was not the only criteria for a high performance diode - "soft" turn off was another critical element.

He also pointed out that the diode performed just as well or better without snubbers.

Finally both he (IIRC) and John "Buddha" Camille (for sure, it was published in Sound Practices) pointed out how certain diode turn off characteristics could excite noise in the secondary of the power trafo. John recommended a couple snubber designs, but NOT the common cap bypass of the diode iteself. I highly recommend his article - it's probably on line somewhere.


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Follow Ups Full Thread
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  • RE: Schottky - Jim McShane 10:46:27 04/01/17 (1)

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