Dorkus, I do believe we are talking at cross purposes here. Please read specifically what Mamsterla posted - mamsterla Wrote: > Gary: > I forgot to mention that my SB2 is modded with a linear, LT1086ADJ > regulated PS and has a new Rubycon ZA "big ass" cap with a 0.01uF > Siemens stacked polyester bypass cap on it. He nor I made any mention of ps decoupling of digital circuitry, only a reference to his rather well chosen (IMO) analog ps. Neither he nor I advocated replacing a smt ceramic for digital decoupling with a stacked film leaded cap. Why in heaven's name would you think we'd done so?
Now when I read Mamsterla's original post I made some assumptions - He chose the LT1086adj, even though LT1086-5 s are available specifically because he could capacitively bypass the ground leg of the voltage set resistive divider for better performance than the non-adjustable implementation. He implemented his ps on some perf board or 'dead bug' and using smt components is simply not practical. And his use of those Epcos stacked film caps is very astute in the context of a non-smt based implementation. Similarly, while I do like the Panny FM electrolytics, as they're readily available, from objective criteria, I can't see why they'd be prefferable to Rubycon ZAs. This implementation potentially offers far superior performance than than the ULN723 based regulated supplies that folks hereabouts are so excited about (and as the original source for the recommendations on AudioCircles of the Hosfelt and the PowerOne supplies from CascadeSurplus, I feel entitled to make such assertions, and only suggested them as a quick and dirty cheap altenative and not as the equal of a well implemented ps as done by Mamsterla) and more importantly, is relatively straightforward to do so. I'm eagerly awaiting your offer of a smt based external linear supply, with double sided boards, proper ground planes for lowest noise, and provision for the 'proper' components. But until that time, I'd think the proper response to Mamsterla would be to ask for advice. FWIW, Occam PS - Thanks for the nerdy references, but save for that 1st general reference, it might be beneficial to make them relevant to the subject at hand, decoupling of LINEAR (PS)circuits. -- occam ------------------------------------------------------------------------ occam's Profile: http://forums.slimdevices.com/member.php?userid=949 View this thread: http://forums.slimdevices.com/showthread.php?t=19822 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
