Granville Phillips 330 Hot Cathode Ion Gauge Controller
This Granville Phillips (Model 330) hot cathode ion gauge controller is a precision instrument designed to indicate vacuum pressures from 10-3 Torr to 10-8 Torr. The basic unit is comprised of a power supply, electrometer, emission controller and ion gauge meter. These Granville Phillips 330 ion gauge controllers are refurbished and are in excellent condition. Granville Phillips 330 cables and ion gauge tube are available but sold separately.