Pulse Amplifier S602

This document is a technical schematic for a Pulse Amplifier (model S602) produced by the Digital Equipment Corporation, dated June 18, 1965. The schematic details the electrical circuit, which utilizes multiple DEC 3639-C transistors, numerous D-662 and D-664 diodes, and various resistors and capacitors. The document includes specifications for component tolerances (1/4W, 5% for resistors; MMFD for capacitors), instructions for the etch board (R602), and a transistor and diode conversion chart. The circuit is designed to operate with a power supply configuration of +10V and -15V.