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

Function of the card:
270Ω Resistor Card
Load resistor

Listed in 1401 SMS card usage

Part number: 371598

Customer Eng reference number: 729890

Used in: IBM 1443 Printer, IBM 1401, 7030

IBM SMS card type NW 371598 IBM SMS card type NW 371598

References: IBM 1443 ALD, p112
Coslet data
2_2 SMS Cards, p51
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.