The Model 247 is a precision regulated linear power supply with a maximum output voltage of 3kV. The units consist of a DC power supply which converts the AC line power to a low DC voltage and a DC converter which generates the high DC output voltage. Low voltage electronic solid-state circuitry is mounted on the plug-in PCB 100, and the high voltage assembly is fully encapsulated for reliable, arc-free, operation. This stable, low noise high voltage power supply features front panel digital voltage metering and calibrated direct reading front panel controls, and a polarity selector switch. The rear panel features a HV output connector line power plug, fuse, and a voltage selector switch. The unit is arc and short circuit protected for safe, reliable operation