SV: Re: [sdiy] Buchla switching supplies

[Harry Bissell Jr]

hmmm let me think...
  
  NO NO NO.
  
  Most swirching supplies need a minimum load on
  the main power output (usually 5V for a computer
  supply).  If its a 200W supply (tiny by todays standards)...
  and you need a 10% load (might be HIGHER(...
  
  You need to burn 20W...  Thats a small soldering iron, eh ???
  
  In real life its probably worse :^P
  
  If you do not make the minimum load, the supply will cycle on and off...
  often in the audio range.
  
  Computer power supplies do not need to be real quiet, as a rule... The EMI
  will be awful. They will often rely on the computer case for additional shielding.
  
  I would avoid computer switchers like the plague. In fact, years ago I retrofitted
  a 286 computer with a LINEAR supply to make it silent acoustically, and 
  electrically.  That won't work today...
  
  H^) harry

Karl Ekdahl <elektrodwarf at yahoo.se> wrote:  So, wouldn't computer PSUs be usable for audio with
the right filtering? It would be *so* convenient since
new ATX supplies give +-12 as well...


Karl


--- mark verbos  skrev:

> 
> 
> Michael Bacich wrote:
> 
> > 
> > On Feb 21, 2006, at 1:32 PM, mark verbos wrote:
> > 
> >> wait, so if Bob Moog used them, then they're ok,
> but the fact that 
> >> they have been in Buchlas since 1973 has no
> effect on our opinion of them?
> >>
> > 
> > Come on Mark, you know the meme:
> > 
> > Bob Moog = Genius, Bold, Pioneer, Enabled Bitchen
> Rock such as ELP, 
> > super nice guy like Santa Claus
> > 
> > Don Buchla = Oddball outsider, Weirdo, Enabled Bug
> Music, Friends with 
> > other Weirdos such as Mort Subotnick
> 
> oh. right.
> 
> > 
> > You do the math.
> > 
> > BTW, is it pronounced Buchla, or Buchla?
> > 
> 
> you mean "Boo-kla" or "Buck-la" or "B-you-kla"?
> 
> I guess the "mo-g" "moo-g"  debate wasn't enough for
> some people.
> 
> ;)
> 
> Mark
> 


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