Power Control 845

This document is a technical schematic for a Power Control 845 unit, dated 1967 by the Digital Equipment Corporation. The diagram outlines the electrical configuration, including a three-phase mains input, circuit breakers, relays (K1), transformers (T1), thyrectors (D1, D2), and various capacitors, resistors, and ferrite tubes. It illustrates the distribution of power through the system, including connections for remote turn-on functionality, console switching, and bay-specific outputs. A complete parts list with reference designations and part numbers is provided at the bottom, alongside a transistor and diode conversion chart.