Function of the card:
Ctrl - inverter "n" 2 way extender
CTRL-Inverter "N" 2 Way Extender
Ctrl- inverter n 2 way extender
Quad 2 Input Open Collector NAND
Complemented Transistor Resistor Logic (CTRL) is IBM's term for a form of resistor-transistor logic.
Part number: 370322
PCB number: 492867
Used in: IBM 1620, IBM 1311 Disk
Symbol:I, A, O
Pinout:
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A I2 B I1 C O3 D I1 E I3 F I3 G O1 H I2 J GND K O4 L PDR M -12V N +12VM P O2 Q I4 R I4 |
IBM 1620 Instructional System Diagrams, p472
IBM 1311 ILD, p92
This page created by Ken Shirriff on Wed Sep 15 18:15:10 2021.
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.