Diode Gate B173

Summary: This document is a technical schematic for a Diode Gate circuit (B173), copyrighted in 1969 by Digital Equipment Corporation. The circuit utilizes a series of diodes (D1–D35) and transistors (Q1: DEC3009B, Q2: DEC4258) to manage signal logic. It includes various resistors and capacitors, operating on power rails of +10V and -15V. The drawing provides a conversion chart for the components used and specifies component tolerances (capacitors at .01µF, 100V; diodes as D664; and resistors at 1/4W, 5%).