RE: Then you need to adjust your parts values

Posted by mobiasloop (A) on September 15, 2014 at 16:15:44

In Reply to: RE: Then you need to adjust your parts values posted by chrismercurio on September 15, 2014 at 12:34:48:

Counterpoint I believe did it in one of their more expensive preamps. Shure had a vacumn tube phono preamp (almost identical to a Dyna PAS3X except it had transformer coupled balanced outputs) that used a choke in a seperate chassis power supply. So yes it's just the designer's choice and how well the parts are employed. I see little need for separate power supplys/chokes for each channel. You just need to choose circuits with very good PSRR and choose a well designed power supply.I looked up the Westrex RA1479 power supply used in a recording mixer and it's ripple content at a DC output of 275v B+ does not exceed .001v at it's specified current draw up to .055A . Moe Bias
"...the fool doth think he is wise but the wise man knows himself to be nothing but a fool." Will Shakespeare

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Follow Ups Full Thread

Topic - Separate LC legs LR Preamp Supply - chrismercurio 14:17:39 09/14/14 (15)

RE: Separate LC legs LR Preamp Supply - Thomas Mayer 07:25:04 09/15/14 (0)

RE: Separate LC legs LR Preamp Supply - twystd 22:21:19 09/14/14 (0)

RE: Separate LC legs LR Preamp Supply - chrismercurio 18:34:07 09/14/14 (10)

Then you need to adjust your parts values - Chip647 05:18:58 09/15/14 (9)

RE: Then you need to adjust your parts values - mobiasloop 09:07:54 09/15/14 (8)

RE: Then you need to adjust your parts values - chrismercurio 12:34:48 09/15/14 (7)

RE: Then you need to adjust your parts values - Thomas Mayer 00:31:06 09/16/14 (2)

RE: Then you need to adjust your parts values - chrismercurio 10:56:24 09/17/14 (1)

RE: Then you need to adjust your parts values - Thomas Mayer 03:04:42 09/18/14 (0)

RE: Then you need to adjust your parts values - Triode_Kingdom 16:59:18 09/15/14 (2)

RE: Then you need to adjust your parts values - chrismercurio 19:51:16 09/15/14 (1)

PS Design - Triode_Kingdom 22:29:02 09/15/14 (0)

RE: Then you need to adjust your parts values - mobiasloop 16:15:44 09/15/14 (0)

Less is better than more - Chip647 17:22:11 09/14/14 (0)

RE: Separate LC legs LR Preamp Supply - Caucasian Blackplate 15:16:42 09/14/14 (0)

Follow Ups

RE: Then you need to adjust your parts values - mobiasloop 16:15:44 09/15/14 (0)

RE: Then you need to adjust your parts values

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