The new Nonoz II DAC page !!!

[Elso Kwak]

Originally posted by Guido Tent
dear all,

You seem to like CS8412 a lot (I use it too). From all the published circuits I see, I have 2 suggestions:

- Decouple filt pin with 10 nF to ground ? Crystal IC designers put it next to MCK pin, they "slightly" lack of understanding of RF crosstalk.....(in average 1 pF is present between 2 pins)

- Redesign the loop filter in order to decrease incomming jitter ?

enjoy,

Hi, Use low noise analog supply for the loopfilter section of the CS8412:
http://db.audioasylum.com/cgi/m.pl?f...12&r=&session=
Orginal post by Wildmonkeysects in this thread:
http://db.audioasylum.com/cgi/m.pl?f...12&r=&session=

[PTSOUNDLAB]

Hello,

does somebody have a schematic or a link for a good very low noise simple PSU (250V without choke if possible) for the Thunderstone analogue stage for TDA1543 I have put in my "NONOZII DAC Output Stage" post ?

Thank you boys.

Pascal.

[Elso Kwak]

Originally posted by PTSOUNDLAB
Hello,

does somebody have a schematic or a link for a good very low noise simple PSU (250V without choke if possible) for the Thunderstone analogue stage for TDA1543 I have put in my "NONOZII DAC Output Stage" post ?

Thank you boys.

Pascal.

Hi Pascal,
I am sure Thorsten (K.Y.W.) has some fine schematics with choke filtered supplies for tubes. I am sorry as I am not into tubes. Can not give you advice here.
Did you check his website and forum?:
http://thunderstoneaudio.nav.to/

http://groups.yahoo.com/group/Thunderstone_technical/

[Tomek]

Accordingly to information which I found on the web, digital output from CD Rom is in TTL format. I want to use Cd rom as a transport. The circuit which converts TTL signal to SPDIF contains 1:1 transformer and 74HC04 chip ( is taken from this website: http://www.epanorama.net/documents/audio/spdif.html ).
DAC which I want to build is a Fedde's NonozII. I thought to put conversion circuit inside of CD Rom enclosure. I would also like to use this DAC with other transports, not only with my CD rom. What would be the best in this situation? Should I put another transformer inside of the DAC?

[Guido Tent]

Originally posted by PTSOUNDLAB
Hello,

does somebody have a schematic or a link for a good very low noise simple PSU (250V without choke if possible) for the Thunderstone analogue stage for TDA1543 I have put in my "NONOZII DAC Output Stage" post ?

Thank you boys.

Pascal.

Pascal

I suggest to at least look athis tool

http://www.duncanamps.com/psud2/index.html

and you may consider posting in a tube related section of this community

I prefer passive supplies, or shunt regulators