[sdiy] CPU power supplies

[harry]

But save yerselves some troubles, kids... and don't make half-wave power
supplies unless you are powering something REALLY small. The reduction of
the filter caps alone (or the same size works better) is worth it.  If you have
a
non center tapped transformer and you make a bipolar power supply, chances
are good it will be half-wave.

H^) harry

Rob B wrote:

> Line Lumps and Wall Warts are usually worth the trouble too, since they are
> so cheap these days.. You can start with say 12v AC, then rectify,
> transform, etc etc to whatever voltages you need internally.. Usually pretty
> easy..
>
> AIM: cybrgzr0 <--- the last thing is a number
>
> ----- Original Message -----
> From: "patchell" <patchell at silcom.com>
> To: "Blue_NINE.a" <pennypridy at earthlink.net>
> Cc: "Synth DIY" <synth-diy at dropmix.xs4all.nl>
> Sent: Wednesday, November 28, 2001 7:54 PM
> Subject: Re: [sdiy] CPU power supplies
>
> >
> >
> > "Blue_NINE.a" wrote:
> >
> > >
> >
> >     In general, I would say no.  Yeah, you can use one, but, they are a
> > bit noisey.  I would say check out the surplus dealers and look for
> > Power One power supplys, uh, linear power supplies, that is.  You can
> > tell it is a linear by how big and clunky it is.
> >
> >     Although, a lot of people on this list don't seem to like to bother,
> > I build my own power supplies.  I don't feel it is that difficult,
> > although, a surplus power one supplies are probably a lot less
> > expensive.
> >
> > --
> >  -Jim
> > ------------------------------------------------
> > * Visit:http://www.silcom.com/~patchell/
> > *-----------------------------------------------
> > *I'm sure glad Merry Christmas comes just once a year
> > * -Yogi Yorgensen
> > ------------------------------------------------
> >
> >

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