On Nov 5, 17:29, Tony Duell wrote:
[US 110-0-110 versus UK 220-0 snipped]
> My view is that running UK stuff off a US 220V supply is OK for testing,
> but I'd not run it like that permanently.
I would agree. The mains switch on a Compact is only single pole. While
it will normally do the job, it might provide an unpleasant surprise for
someone in the future.
> Are you sure the Master Compact can't be converted for 110V mains. I
> don't have that machine, but other models of BBC and Master have PSUs
> that can be converted by a link on the PSU PCB which, as usual, converts
> the input stage between a bridge rectifier and a voltage doubler.
I'm pretty sure it can; the Compact uses a standard SMPSU in the disk box.
There should be a 110/220 link on it.
To open it up, you need to remove the front and rear trims. These are
clipped into the side trims, but also have two (or three?) bumps on top and
bottom edges which fit into small slots in the metal case. They're a bit
fiddly, and often very stiff the first time, but they will come off without
tools. Then you can remove the side trims, and if I remember correctly,
there are a few obvious screws to remove before sliding the cover off.
(Caveat: it's a long time since I've taken a Compact or an Acorn Filestore
(same case) apart).
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Received on Sun Nov 05 2000 - 15:53:45 GMT