I have an Acorn computer still in use for news and email etc - no
possibility of viruses etc. And a superb newsreader.

However, the PS failed in a big way - lots of components burnt out. I have
a spare, but it is of lower power so can't run all the extras I've fitted
over the years.

It's a simple PS - only +/-12 and 5 volts.

Now ATX etc PS are cheap as chips but won't fit the case due to the
size/shape. The original is long and thin.

Glancing through the website of a large UK electronics supplier I came
across one which would fit physically - I believe it's a TFX type and had
plenty of power in reserve for my application.

http://cpc.farnell.com/jsp/Computer+...sp?sku=CS11791

So I bought one and although the main Molex connector was the same as my
'real' PC - a 20 pin with a four clipped on (ATX2?) the wire colours were
rather different. The mains outputs were the normal red for 5 etc, but the
control ones different. For example the switch pin - 14 - is normally
green. No green wire anywhere. This one had a grey wire to it - and where
the standard grey is to pin 8 this one has orange. ;-)

But grounding pin 14 got it going - so I'm just curious. Did they run out
of wire or is it to some standard I've not heard of?

--
*I want it all and I want it delivered

Dave Plowman London SW
To e-mail, change noise into sound.