Function of the card:
SDTDL-2 Way Logic Block Low Speed with Loads
SDTDL 2 way logic blck low sp w lds
SDTDL-2 way logic block low speed with loads
SDTDL - 2 Way Logic Block Low Speed With Loads
Listed in 1401 SMS card usage
Exists in SLT version.
Part number: 370380
SLT modules: 2399110
Customer Eng reference number: 729913
PCB number: 484027
Image courtesy of Roberto Gonzalez Rocha
2_2 SMS Cards, p83
IBM 2821 CCD, p50
IBM 1443 ALD, p94
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.