I have here a Farnell N110P411 open-chassis SMPSU. On a relay on one
end of the board there is a white sticker with the text "TORCH
COMPUTERS LTD (C) 1983" and a QC stamp.
If anyone would like this (free, you pay shipping) as a spare part or
for a repair/restoration, please speak up by private email. I'm
clearing out some old stuff and I won't be able to keep this for too
much longer before it gets recycled.
Ed.