[sdiy] Multiple Voltage Power Supply / design problem!

[Paul Perry]

..thanks to careful regulation on the audio card itself, or inside the chip
doing the audio processing!
Believe me, the old computer PSU isn't the way I'd go.

By the way, anyone looked at a scope trace of the mains lately? It isn't a
sine wave any more, more like the Matterhorn with the tip chopped off,
thanks to all the switch mode supplies hanging off it. Oh, and I wonder
where those mains frequency spikes come from??

Paul perry Melbourne Australia


-----Original Message-----
>I wasn't even thinking about putting a linear regulator on the end.
>More along the lines of some inductors and capacitors.  Must be possible
>to get reasonably clean DC from a PC PSU.  Plenty of PC audio equipment
>manages very low SNR, much lower than your average synth.