W592

This document is a schematic diagram for the IBM 360 to DEC Bus Receiver, model W592, by Digital Equipment Corporation, copyrighted 1967.

Key information includes:

• Purpose: The circuit is designed to receive signals from an IBM 360 system and interface them with a DEC Bus. It contains multiple receiver stages (Q1-Q15) with associated components.
• Proprietary Nature: The schematic is furnished only for test and maintenance purposes, and the circuits are proprietary to Digital Equipment Corporation.

• Component Specifications:

  • Transistors: Primarily DEC3639B (equivalent to EIA 2N3639), unless otherwise indicated.
  • Diodes: Primarily D662 (equivalent to EIA 1N645) and D664 (equivalent to EIA 1N3606), unless otherwise indicated.
  • Resistors: Generally 1/4W with 5% tolerance.

• Power Rails: The circuit operates with power supplies including +10V, +2V, 0V (GND), and -15V, as well as a -3V STRATE.

• Document ID: Drawing number W592-0-1, Revision A.