For sale is a Pacific Scientific 5445 stepper motor drive. It is quite large and has a very heavy duty appearance. Also comes with a diskette and has a cheat sheet on the side that explains all the wires.
I tested it by applying 110VAC to the 110VAC terminals. It lit up and the green light came on, the fault light lit for a fraction of a second as the drive was booting, and turned off. No more testing was performed, but I will refund your money if not satisfied within 5 days. You will have to pay for shipping both ways.