Power Supply 739D

This document is a technical schematic for the Digital Equipment Corporation (DEC) 739D power supply. It provides detailed electrical circuit diagrams, component specifications (including capacitors, diodes, and transistors), and connection information for maintenance and testing purposes. The schematic outlines the power distribution from the T-1-57109 transformer through various control boards including the Inhibit Power Supply Control and Read/Write Power Supply, as well as voltage regulation details for different output ranges.