Hello from Russia!  I have MIDI circuit boards and relay output
interfaces and I want to build a 88-note piano roll perforating machine
on this base, but I don't know how make the mechanical part of the
machine.  Where I can find an old punch head or how to make a new one?

Alexander Zenin
Moscow
zenin@kinotehnik.net.geentroep [delete ".geentroep" to reply]

 [ Alexander writes about (and collects) vintage film projection
 [ technology.  He also moderates the "Kinoteknik" web site and
 [ discussion forum for film projectionists, cinema engineers and
 [ installation specialists, at http://www.kinotehnik.net/ 
 [
 [ Photos and descriptions of multiple-punch perforators are at
 [   http://www.mmdigest.com/Gallery/Pictures/tonnesen.html 
 [   http://www.mmdigest.com/Gallery/Pictures/saul.htm 
 [   http://www.mmdigest.com/Gallery/Pictures/gaidaPerf.html 
 [
 [  -- Robbie