Diode Gate Driver B685

This document is a technical schematic for a Diode Gate Driver circuit, manufactured by the Digital Equipment Corporation in 1967. The diagram illustrates two identical driver circuits, each utilizing transistors (2N4258 and DEC 3009B) and an array of D662/D664 diodes, supported by a network of resistors and capacitors. The circuit is designed to operate on a power supply of +10V and -15V. It includes a parts list, a transistor and diode conversion chart, and specifies standard component values (1/4W resistors and .01 MFD capacitors) for parts not otherwise explicitly labeled.