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

Function of the card:
Echo Pulse Line Converter

Listed in 1401 SMS card usage

Part number: 370641

Used in: IBM 729V, 7030

IBM SMS card type APG 370641 IBM SMS card type APG 370641

Image courtesy of Henk Stegeman

This page created by Ken Shirriff on Wed Sep 15 18:15:09 2021.

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.