Function of the card:
CTDL-High Speed Trigger
Ctdl hegh speed trigger
Complemented Transistor Diode Logic (CTDL) is IBM's term for a form of diode-transistor logic.
Trigger is IBM's term for a flip flop or latch.
Part number:371946
Field replacement part number:371946
Customer Eng reference number:729804
1_2 SMS Cards, p61.
1410_SMS_VOL_1.pdf/1410_SMS_VOL_2.pdf, p2120.
This page created by Ken Shirriff, 2015.
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. Images courtesy of Randall Neff. Much of this information was obtained through OCR, so don't expect complete accuracy. These pages are not associated with IBM in any way.
Creation time: Tue Mar 03 23:40:32 2015.