Function of the card:
SDTRL-Inverting,Heavy Power Driver
SDTRL-inverting,heavy power driver
Dual Power Driver
Part number: 370172
Used in: IBM 1620, 1622
IBM 1620 FE Catalog
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.