Binary to Octal

This document is a technical schematic for the Digital Equipment Corporation (DEC) SI51 Binary to Octal Decoder, dated June 1965. It provides a circuit diagram for testing and maintenance purposes, detailing the resistor, transistor, and diode configurations required to perform binary-to-octal decoding. The document includes a component conversion chart for transistors and diodes, and specifies that resistors are 1/4W with 5% tolerance.