Function of the card:
Part number: 373373
Customer Eng reference number: 734417
PCB number: 748403 , hole pattern: 490284
Used in: IBM 2821 Control Unit
Image courtesy of Henk Stegeman
IBM 2821 CCD, p88
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.