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

Function of the card:
-6V Amp

power supply

Part number: 372595

Used in: IBM 1443 Printer

IBM SMS card type ZGS 372595 IBM SMS card type ZGS 372595

Image courtesy of Henk Stegeman

References: IBM 1443 ALD, p173
This page created by Ken Shirriff on Wed Sep 15 18:15:10 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.