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18V phono preamp (super) regulator
18V phono preamp (super) regulator
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Old 30th January 2011, 11:52 AM   #1
arlekin is offline arlekin  Croatia
diyAudio Member
Join Date: Jan 2006
Location: Sibenik
Default 18V phono preamp (super) regulator

Can someone please suggest +/-18V regulator for phono preamp?

I would go with the Jung/Diden super regulator but it seems that opamps can't handle that much voltage.
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Old 30th January 2011, 12:38 PM   #2
AndrewT is offline AndrewT  Scotland
Join Date: Jul 2004
Location: Scottish Borders
Use a Salas type Shunt regulator.

There are many threads extolling the sound quality that results from adopting the Salas.
regards Andrew T.
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Old 30th January 2011, 06:32 PM   #3
martin clark is offline martin clark  Europe
diyAudio Member
Join Date: Jul 2003
Location: Bath, UK
There's no problem at all using a Jung SR at those voltages - you need one for +ve which is supplied from+ve raw supply to 0v, and one for negative, supplied from -0v raw to 0v. With only minor care (such as watching disspation in parts and heatsinking) you can use Jung superregs to supply well over +/-30v.

Take the time to read the documentation on Walt Jung's homepage:

Walt Jung - Regulators

- there is much pertinent information given, whichever route you choose.

Last edited by martin clark; 30th January 2011 at 06:37 PM.
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Old 30th January 2011, 10:44 PM   #4
arlekin is offline arlekin  Croatia
diyAudio Member
Join Date: Jan 2006
Location: Sibenik
Yes, I have read some of the articles, and considered mounting the heatsinks on the opamp, but the 18V output seemed to much of a stretch for the AD817. I thougt that the regulator will loose some of the good characteristics that way.

I will try the Super Regulator then (since I've done them before), but now I'm intrigued with the Salas.


Last edited by arlekin; 30th January 2011 at 11:05 PM.
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