17 May
2001
17 May
'01
9:30 p.m.
> On May 16, 21:59, Louis Schulman wrote:
> > Well, I just got a fabled but seldom seen Exidy Sorcerer. It has a
> > power supply problem (including the need to be converted back from 220
> > to 110V) but I am working on that.
> That should be fairly easy; you just change the transformer connections
> inside the case. The 110V setting has two primary windings connected in
> parallel to the mains; for 240V the black/red and black/yellow wire would
> have been cut at the mains filter and joined together, putting the two
> windings in series.
Pete will know this, but a word of warning for anyone
else trying that.
It's _essential_ that you have the 2 windings the right way round ('in
phase'), otherwise you are effectively shorting out the output of a
110V-220V autotransformer when you make the second connection. Which will
result in a blown fuse at best and a ruined transformer at worst.
The safest way to do it [...long and good description
deleted...]
That's exactly why I find a transformer a convenient solution.
Just plug it in and that's it.
Gruss
H.
P.S.: yes, I know how to handle this type of task, but avoiding unnecersary
work is better idea :)
--
VCF Europa 3.0 am 27./28. April 2002 in Muenchen
http://www.vcfe.org/