On Sat, Oct 12, 2013 at 09:22:57AM +0200, Holm Tiffe
wrote:
  The computers are looking like ther american
originals but if you are
 looking deeper, they don't have much in common.
 Most of the software is compatible, ok. 
 [...]
  About the 50 vs. 60Hz: that will be no problem
but you will have for sure
 Daytime Clock that will run away... 
 Nitpick:  doesn't the Pro use an M146818 RTC as the clock?
 So if the Russian box is SW compatible, at least the line freq
 won't be a SW problem.  (It'll be equally annoying to everyone by
 running at 64 Hz instead of either 50 or 60.) 
I'm having trouble finding the relevant code to confirm, but that sounds right -- 64
Hz clock interrupt rate is familiar.
        paul