A few months ago I picked up some Polycorp Polys, a computer designed specifically for the educational market in New Zealand. One worked and one didn't. The latter is now fixed. As usual I've written it up with lots of pictures. If anyone is interested you can read about it here.
http://www.classic-computers.org.nz/blog/2017-01-08-second-poly1-fix.htm Cheers Tez
