Power Fail M703

This document provides a detailed circuit schematic for the M703 Power Fail module, designed by Digital Equipment Corporation in 1967. It includes logic gates (E1, E2, E3, E4, E5, E6, E7), transistors, diodes, and capacitors used for power failure detection and initialization signaling. The schematic outlines input/output connections, including PWR LOW, INITIALIZE, SHUT DOWN, and various addressable inputs, while specifying component characteristics (resistors, diodes, transistors) and pin assignments for the integrated circuits.