[sdiy] Really Small Linear Power Supplies ?

[flightofharmony]

Mouser carries the Elpac line of wall-warts and line-warts, those have
multiple outs: http://www.mouser.com/catalog/635/1978.pdf (catalog page)
~$40 for the wall-warts, ~$120 for the bricks. Very good PSUs though.

~flight
flight at flightofharmony.com
http://www.flightofharmony.com


-> -----Original Message-----
-> From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-
-> bounces at dropmix.xs4all.nl] On Behalf Of Ken Elhardt
-> Sent: Monday, October 27, 2008 5:30 PM
-> To: John Mahoney
-> Cc: synth-diy at dropmix.xs4all.nl
-> Subject: Re: [sdiy] Really Small Linear Power Supplies ?
-> 
-> >>You can't find a power supply that's small enough for your enclosure? I
-> missed your original post. Why not use a "wall wart" or "lump in the
line"
-> solution?
-> 
-> Another possibility is to rearrange the components of a supply that
-> would fit *if* it were laid out differently.
-> 
-> Finally, you could build your own. There are plans for a +/-15V power
-> supply in the sample chapter of Thomas Henry's e-Drum book:<<
-> 
-> 
-> Ah, you're a little behind on the posts.  A "wall wart" was maybe my
-> next option, but they usually only output a single voltage.  I had
-> posted asking how one also gets a negative voltage out of them.  In
-> some cases it involves almost a whole power supply board such as the
-> one on the musicfromouterspace site I was just looking at.  I've
-> looked at lump in the middle or similar supplies, like those that
-> power my LCD display I'm now typing on, or my external hard drive and
-> Jaz drives, but those also usually only output 1 or 2 positive
-> voltages and most seem to cost considerably more than a regular power
-> supply, which I don't understand why.
-> 
-> I was really just hoping to buy something and pop it in, without going
-> through hours of searching through catalogs buying individual parts at
-> one place, and a PCB elsewhere.  That's more hassle and work to go
-> through than to just let the case be ridiculously deep.  I can't find
-> a picture of the Condor supply I'm probably just going to have to buy,
-> but if it's similar to one of the other models that Mouser has
-> pictured in their catalog, it looks like I can remove the PCB which
-> looks thin in one direction, and remove the transformer from the metal
-> enclosure and arrange them to fit in less than a 2.5" height space.
-> If so, then problem solved.  It just seems that in this day where
-> everything is being shrunk down to fit in ever smaller products, one
-> should be able to find a power supply that can fit into a 2"x2.5"xAny
-> Length space.
-> 
-> -Elhardt
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