The 1414 Card Reader/Punch/Printer I/O controller for the IBM 1410 we had
at the UW ( ahem, Wisconsin 8-) ) School of Business had several
electrolytics installed backwards due to that sort of misunderstanding. It
ran that way for more than a decade -- we used to have to wait an extra 15
minutes each day for the print chain and the controller to get in sync
because of it. It got fixed during the last year of life of the machine.
>Severely underrated. A 50V cap running at 70! The diode was a victim.
>A remember a box of returned cards the size of a large chest refrigerator
>at WJO01 in '84. I happen to look at it and after the third or forth card
>surmized the failure... annoyed a few people that I could see that without
>a full field study. Oh, the cause was a transmission error, the person
>that drew up the BOM copied the wrong values. It would go years that way
>before someone becuse of the problem would pull the original DD, CS, KPL
>and see they didn't match. Classic case of why CADD was a desireable
>thing.
>
>Allison
>
---
Jay R. Jaeger The Computer Collection
Jay.Jaeger_at_msn.fullfeed.com visit
http://www.msn.fullfeed.com/~cube
Received on Thu Nov 05 1998 - 20:27:16 GMT