This page describes the IBM SMS card "KX", and is part of the SMS card database.

Function of the card:
Power Gate

Part number: 371484


G: Gate. Provides a switching pulse of voltage or current, positive or negative, that conditions some other circuit so that it may become either activated or deactivated by one or more other pulses.

References: IBM Standard Modular System, Component Circuits, p221
This page created by Ken Shirriff on Wed Sep 15 18:15:11 2021.

The information on these pages comes from a variety of sources, especially old IBM documents on, as well as information from the IBM 1401 restoration team, especially Tim Coslet's SMS data and Jim Hunt's data. Much of this information was obtained through OCR, so don't expect complete accuracy. These pages are not associated with IBM in any way.