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

Function of the card:
Block Diode

Part number: 375174

PCB number: 396789

Used in: 29

Cap code: None (details)

IBM SMS card type FKJ 375174 IBM SMS card type FKJ 375174

Image courtesy of Arthur Dauzat
References: 029 Parts Manual

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.