This page describes the IBM SMS card "JD", and is part of the SMS card database.

Function of the card:
Ctrl-inverters pwr-pnp wo input cap
Inverters,. power-pnp without input capacitors

Complemented Transistor Resistor Logic (CTRL) is IBM's term for a form of resistor-transistor logic.

Part number:371478

Used in:IBM 1414 I/O Synchronizer,IBM 1410

References:
1410_SMS_VOL_1.pdf/1410_SMS_VOL_2.pdf, p2081.
1414 SMS Cards, p63.
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 23:40:34 2015.