In Reply to: PS... posted by Thorsten on January 12, 2005 at 03:59:17:
Hi T,Thanks for the copper tape tip.. The matrix boards available here already have a copper grounding plane on one side. I'll keep the PM56 Dac in mind.
A young buddy of mine is good at making pre-sensitized pcb's - but so far only single sided types for his discrete ss phonostage (his own design). We plan to launch it (locally) as soon as the bugs at the MC section get "solved" (pp or differential *?*). So far the paralleled chokes after the ic V regulator helped a lot, he is yet to try a power opamp as regulator with some trick V reference. BTW, the whole PSU board uses a matrix board with a copper groundplane.
Anyways, the designer of the rockna DAC prefers 1:1 upsampling for the incoming data - counter to the more purist approach of almost all "non-os dacs". I still have to ponder if I'm going for a module or complete diy from ground up using available schematics like Pedja's (I can only do this with a buddy's help of course)...Do you have a good schematic for a tube outputstage for 1A out type dacs like the AD1856, preferably the Gomez type compund circuit? I have seen a dac kit being sold in the UK using four 12SN7's for Gomez output. I have some 6SN7's lying around I could try.
Thanks for the exhaustive thoughts on DACs.
Regards,
fred
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Follow Ups
- Re: PS... - fred76 11:15:33 01/12/05 (1)
- Re: PS... - Thorsten 12:14:40 01/12/05 (0)