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Re: CGS 14 clean PSU Suitable transformer?

2007-10-04 by Andre Majorel

On 2007-10-04 10:19 -0000, machvingtsun wrote:
> --- In cgs_synth@yahoogroups.com, Andre Majorel <aym-htnys@...>
> wrote:
> > On 2007-10-02 15:52 -0000, machvingtsun wrote:
> >
> > > Ive built a CGS 14 clean power supply. Can I use a 12v or
> > > 24v AC wall wart to power it. These are the only reasonably
> > > priced transformers here (Ireland).
> > >
> > > Or does anyone know where I could salvage or buy for a
> > > reasonable price a center tapped transformer?
> >
> > I got a 300 VA 2 x 18 V toroidal (Farnell SKU 430-1742).
>
> Thanks for the link Andre. One question though, in the
> specifications its described as having two 115v primary, I assume
> this is intended for a mains supply of 230V?

As Ove said. Should you ever need to use your gear in a 115 V
locale, you would just have to rewire the primary.

A 300 VA transformer is quite heavy. The idea is to put it in a
box on the floor and run the secondaries to your power supplies
via 4-way connectors. Since the connectors and cable will be
pre-filtering caps and pre-regulator, voltage drop doesn't matter.
You could probably get away with something cheap like a 4-way DIN
if your PS doesn't draw more than about 2 A on each rail.

--
André Majorel <URL:http://www.teaser.fr/~amajorel/>
Do not use this account for regular correspondence.
See the URL above for contact information.

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