In Reply to: RE: Schottky posted by Triode_Kingdom on March 31, 2017 at 14:45:11:
IIRC, the UF5408 is somewhat faster than the GI856. Mere speed is not the only puzzle piece. AFAIK, FREDs are the fastest PN junction diodes, but not necessarily the best sounding. The character of the reverse recovery spike and the ease of suppression also matter.
Jim uses series wired GI856 pairs and a single film snubber cap. in the PSU of a H/K Cit. 2. The result is excellent. Of course, the low DCR choke after the doubler stack definitely contributes. A "hash" filter, made from "RF" parts, located between the doubler stack and the main filter choke yields an additional slight improvement in background "blackness". The "hash" filter kills crud from 3 potential sources: AC mains "hitchhikers", SS diode switching noise, and ripple overtone energy associated with the large valued doubler stack capacitors.
Eli D.
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Follow Ups
- RE: Schottky - Eli Duttman 18:20:44 03/31/17 (15)
- RE: Schottky - Triode_Kingdom 10:49:35 04/01/17 (14)
- RE: Schottky - Eli Duttman 12:44:46 04/01/17 (8)
- Hash Filter / Diodes - Triode_Kingdom 07:47:32 04/02/17 (7)
- Hash Filter Model - Triode_Kingdom 08:03:50 04/02/17 (6)
- RE: Hash Filter Model - Eli Duttman 09:57:07 04/02/17 (5)
- Cit II Doubler Filter - Triode_Kingdom 14:52:02 04/02/17 (4)
- RE: Cit II Doubler Filter - Eli Duttman 15:38:49 04/02/17 (3)
- RE: Cit II Doubler Filter - Triode_Kingdom 20:10:46 04/02/17 (2)
- RE: Cit II Doubler Filter - Jim McShane 13:02:13 04/04/17 (1)
- RE: Cit II Doubler Filter - Triode_Kingdom 08:21:30 04/05/17 (0)
- CLC / Snubbers - Triode_Kingdom 12:11:07 04/01/17 (4)
- RE: CLC / Snubbers - Eli Duttman 13:03:21 04/01/17 (3)
- RE: CLC / Snubbers - Triode_Kingdom 13:19:21 04/01/17 (2)
- RE: CLC / Snubbers - Eli Duttman 14:23:35 04/01/17 (1)
- RE: CLC / Snubbers - Triode_Kingdom 14:48:21 04/01/17 (0)