Function of the card:
(Dual or Differential) Power Amplifier/Driver
Part number: 372309
PCB number: 399627
Used in: IBM 1311 Disk
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.