Leybold - Heraeus 150/360 TURBOTRONIK NT 85472-1 Turbomolecular Pump Controller

Leybold - Heraeus TURBOTRONIK NT 150/360 85472-1 Turbomolecular Pump Controller. Unit has some scuffs, scratches, and general wear from use, buttons need replacing, start button once pressed in does not rebound and has to be manually pulled back to stop the start process, stop button function but missing cap (See pictures, comes as shown). Device is only power tested. Reads 82,904 Hrs on time counter. Info on Turbomolecular Pump Controller: Leybold - Heraeus TURBOTRONIK NT 150/360 IBM 663684 B Inventoried 1987 PN: 85472-1 SN: P7A-2714 Manufacturer's Description: The Leybold Turbotronik NT 150/360 is a turbomolecular pump controller.  It's designed to operate with the TURBOVAC 150(C), 360(C), and 361(C) turbomolecular pumps. The NT 150/360 is an electronic frequency converter that's maintenance-free. ALL QUESTIONS AND OFFERS WELCOME