Function of the card:
Voltage sequencing card
Part number: 374792
PCB number: 396417
Used in: IBM 2821 Control Unit
Cap code: None (details)
Image courtesy of Henk Stegeman
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.