Function of the card:
Overvoltage Protection 36 Volt
Crowbar
Part number:370577
PCB number:484339
Used in:IBM 1620
Symbol:OV
Transistor type:026 086
Pinout:
 |
A NEG B NEG C NEG D NEG E NEG F NEG G NEG H POS J POS K POS L POS M POS N POS P POS Q R BIAS |
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.