Hi,
 
As I am a student I have no cash :-(
 
I have an old Calcomp Drawingboard 3 but it needs an I/O lead. I could make one but I don't know the pin outs, if anybody could check this I would be eternally greatfull.
 
It's easy to do, just remove the lead and put a multi-mevert across each end and let me know the pins that buzz.
 
Please help??
 
 
David.