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Re: Re: OT PSU's



Patrick Lidstone wrote:

> --- In ukha_d@xxxxxxx, groups@w... wrote:
> > I am after a PSU that is rated 18 Vac 300mA but despite weeks of
> searching the
> > nearest I can find is one from CPC that is 18 Vac 500mA
unregulated.
> >
> > My question is is this safe to use?
>
> Yes, without any doubt whatsoever.


I'm not so sure about that. Unregulated power supplies put out higher
voltages when not used at the design load.

If the no-load voltage of the psu is less than the terminal voltage (ie
one that will kill it!) of what you want to connect, then you're
probably ok. Otherwise; your call ;-)

(It'll probably only be a few volts higher at 300mA though).

You'd definitely be safe with a >300mA regulated psu...

Jim



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