|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
24.12.169.184
In Reply to: RE: Schottky posted by Triode_Kingdom on March 31, 2017 at 13:03:11
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.
Follow Ups:
Thanks for that info Jim. I located a General Semiconductor PDF on this topic that refers to Rick's article (Audio Amateur - Jan '94), but not the article itself. I get the gist of this though. Your experience speaks for itself; I'll take this approach for future builds.
--------------------------
Buy Chinese. Bury freedom.
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: