I have 2 Powertron Servo Motors here: 2 Powertron Permanent Magnet DC Servo Motors | eBay
The matching drives here: http: //www.ebay.com/itm/172142981032?ssPageName=STRK:MESELX:IT&_trksid=p39 84.m1555.l2649
The full wave 15hp spindle drive here: 15HP Systrol SCR Full Wave Regenerative DC Drive 3PH | eBay
I also have the 7.5hp Powertron DC spindle motor