The HP 6433B Power Supply is a SCR based regulated supply which provides good high current output capability but also outputs a slight amount of ripple. Constant-Voltage/Constant-Current modes. DC output from 0-36V @ 0-10A. Large easy-to-read meters continuously monitor output voltage and current. Bus bars and terminal blocks on the rear panel provide connections for input and output power, remote sensing, remote programming, and auto-series, parallel, and tracking connections. Unit also incorporates reverse voltage protection and a fused AC input. Operates from 115 VAC ±10%, single phase, 57-63 Hz.