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

Function of the card:
Spd/current driver
SPD Current Drive

Part number: 372228

Customer Eng reference number: 734400

Used in: IBM 1443 Printer

Cap code: None (details)

IBM SMS card type YKZ 372228 IBM SMS card type YKZ 372228

Image courtesy of Chris Bigos

References: IBM 1443 ALD, p126
National Museum of Computing.

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.