Value="0.7" unit="mm"/> 2 keahS oidaR - 2 5mm LEDs Fab Plant Research Pages Fab Plant Research Table of Contents PSU (power supply unit Outputs ±12V DC, +5V DC, and passes CV and trigger or gate per step. (10 Momentary-normal-off pushbutton to manually step. SPST switch to disable clock (pause). SPST switch per.