Function of the card:
SDTRL-Oscillator, 1 MC S Line Gated
SDTRL oscillator i mc s line gated
SDTRL - oscillator, i mc s line gated
Part number: 370299
Field replacement part number: 370299
Customer Eng reference number: 729038
PCB number: 493327
2_2 SMS Cards, p120.
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.