Re: LV PSUs


"> Well my trusty old 12v PSU is not too well and I doubt I can even find a
replacement transformer (or more accurately a core) that will fit as a
replacement - I originally rewound an unknown unit to give me the 25A that
I
rated the PSU for. So, despite being a fan of plenty of heatsink, bolt
and
braces over-voltage and current protection, many big terminals that are
properly rated, soft-startups and accurate metering you can read and use,
I
am looking to retire it and buy a replacement.

I read the (later) switched modes are very powerful, stable, lightweight,
small and low on emitted RFI. Is this all true and (more to the point for
me) are they RFI proof from my own signal - it must be said, I do have a
lot
of local RF that likes to upset various kit if allowed.


I have just modified an old computer AT psu for 13.8V, it works surprisingly
well, and this particular model is also very quiet on the rfi front. It
seems capable of 20A and didn't cost a penny!!

Regards
Jeff


.

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