[sdiy] power supply

[Needham, Alan]

If this IS regulated it should give +/- 12v with no load at all,
If it isn't regulated I wouldn't be surprised to see +/- 15v or even
more!

Either way, if you want to avoid mains then this is a reasonable start,
Just build a simple regulator with something like 7812 and 7912
regulators
and a couple of 6800uF capacitors IF the transformer isn't regulated and
smoothed.

That's my thoughts anyway, Alan


-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Paul Perry
Sent: 17 December 2007 22:10
To: synth-diy at dropmix.xs4all.nl
Subject: RE: [sdiy] power supply

It depends by what you mean by "work".

If the supply is not regulated - and I don't see any evidence that it is
- 
then the + or - voltage could be up or down by a volt depending on the
mains, or load variations.

That isn't going to damage the synth modules attached - but it isn't
going
to do anything for stability either.

Perhaps someone has experience with this supply?

paul perry Melbourne Australia

-----Original Message-----
> Would this work for +/- 12v modules like MFOS, Doepfer, etc?
> 
> http://www.elexp.com/cmp_dtrn.htm

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