Diode Gate

This document is a technical schematic for the Digital Equipment Corporation Diode Gate model B142. It outlines the circuit design, including resistors (R3, R6, R9, R12, R15, R18, R21), diodes (D1-D28), and transistors (Q1-Q7). The document provides a conversion chart for the transistors and diodes used (DEC3639-1B, 1N645, 1N3606) and specifies standard component tolerances. This is intended for test and maintenance purposes.