This group has -- time and time again -- been an incredible resource for problem-solving, so I'll just throw this situation out there, hoping for help.

One of my students purchased a used Jet 10-14 variable speed mini-lathe. It runs okay, but the variable speed feature doesn't function. We've replaced the pedometer, checked for loose wires, and even taken it to an electronics repair shop. Jet says the mother board is no longer available. Short of removing the control box completely and simply using the change-a-belt system, I don't know where to send him.

Any ideas?