Function of the card:
Drift - Delay Line .1 to .5 uSec 100 ohm
7106 Core Storage
Drive Delay Line .1 to .5 mSec 100 Ohm
Part number: 371621
Used in: 7030, 7040
References: National Museum of Computing.
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.