Power Inverter B681

Summary: This document is a technical schematic for a Power Inverter (Model B681) designed by Digital Equipment Corporation in 1964. The circuit utilizes four transistors (Q1 through Q4) paired with arrays of D-664 diodes and various resistors and capacitors. The schematic provides the necessary electrical configuration for the assembly, including a Transistor & Diode Conversion Chart, and specifies standard component tolerances (1/4W, 5% for resistors; MMFD for capacitors).