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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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In Reply to: Pi filter resistors posted by Cousin Billy on January 2, 2016 at 04:46:47:
Ralph uses very high quality resistors. The best you could choose would be Mills non-inductive wire wound or the Dales that I believe are used in your amplifier. Changing to Schottky diodes will raise the DCV by a few volts, which is trivial, but removing the resistors would diminish the filtering that comes after rectification. The two things work together to give you good DC. Furthermore, I challenge anyone to tell me he can "hear" the resistor in a pi filter, so long as its up to the job of carrying the requisite current, which is why Ralph recommends 1W rating.
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Follow Ups
- Keep the 1K resistors (or whatever the value)... - Lew 16:40:30 01/18/16 (7)
- Addendum - Lew 14:54:50 01/20/16 (6)
- Will you Marry Me? - Cousin Billy 01:46:31 01/22/16 (5)
- RE: Will you Marry Me? - Lew 07:10:19 01/22/16 (4)
- The resistor - Ralph 09:58:21 01/22/16 (3)
- I'm sure you're correct. - Lew 11:04:03 01/22/16 (2)
- Help identifying the present choke - Cousin Billy 04:16:50 01/25/16 (1)
- RE: Help identifying the present choke - Lew 11:17:02 01/25/16 (0)
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