Diode Gate B141

This document is a technical schematic for a Diode Gate circuit (B141) produced by the Digital Equipment Corporation in 1966. The circuit features seven parallel stages, each consisting of a 2N4258 transistor and two D662 diodes, supported by a network of 100kΩ and 7.5kΩ resistors. The schematic also includes a conversion chart for the transistors and diodes used, as well as general component specifications indicating that, unless otherwise noted, resistors are 1/4W 5%, diodes are D664, and transistors are 2N4258.