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

Part number: 374868

Cap code: None (details)

IBM SMS card type ETT 374868 IBM SMS card type ETT 374868

Image courtesy of rolyath
Image courtesy of Roberto Gonzalez Rocha

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.