Acorn A4 PSU (was Re: IBM Engineers)

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Sat Apr 10 18:00:57 2004

>
> In message <m1BC2pD-000JAXC_at_p850ug1> you wrote:
>
> > > I've replaced all the electrolytics on the LV side that I could see. I've
> > > just noticed a 1uF 50V that I missed - I don't think I've got a 1uF 50V 1=
> > > 05
> > > deg C in stock though.
> >
> > I think any 1uF 50V (or higher) would do to prove the point :-).
> I've just swapped out the cap with a cheapo 85C 1uF and the PSU is working
> again. Now I need to find some way of repairing the casing. Two of the

Right... I've actually had low-value caps go essentially open-circuit
before...

> screw-posts seem to be OK, but the other two have disintegrated. Only one of
> the two remaining screw-posts seems to work - the screw keeps slipping out of

Can you cut off the screw posts and replace them with something else (say
a hard plastic rod, with suitable holes drilled and tapped in the ends).

> the other.
> So on the one hand I've got a working Acorn A4 power supply. On the other
> hand, the casing is knackered :-/

Does it haveto br the original casing, or could you use some other box of
a suitable size. OK, it wouldn't be original, but...

-tony
Received on Sat Apr 10 2004 - 18:00:57 BST