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

Function of the card:
Three-Way AND (in-phase load)

Listed in 1401 SMS card usage

Part number: 371219

Used in: IBM 729II, IBM 7090, IBM 7070

Cap code: YZ (details)

Symbol: +A

+A: Positive AND. in-phase output is positive only when all inputs are positive. Out-of-phase output is negative for the above condition.
IBM SMS card type ACYZ 371219 IBM SMS card type ACYZ 371219

References: IBM Standard Modular System, Component Circuits, p20
SMS Cap Code Templates & Index

The information on these pages comes from a variety of sources, especially old IBM documents on bitsavers.org, 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.