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

Function of the card:
Print magnet hammer driver

Part number: 373254

Customer Eng reference number: 736614

PCB number: 490533 , hole pattern: 490322

Used in: IBM 1443 Printer

References: IBM 1443 ALD, pp115,116
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.