Changeset 570 in t29-www for en/computer/ibm1130.php


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Timestamp:
Jun 8, 2014, 9:50:40 PM (5 years ago)
Author:
heribert
Message:

Blog erweitert.
Die englische Version müsste vermutlich überarbeitet werden

File:
1 edited

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  • en/computer/ibm1130.php

    r564 r570  
    8585from the machine! That is the worst case for every restoration project! A
    8686closer inspection revealed, that a second board, 4628, is also missing from
    87 the printer control. We are now <a href="/en/wanted.php">looking desperately for replacement boards</a> or
    88 at least the schematics. If you can help, please <a href="/en/contact.php">let us know!</a>
     87the printer control. <br><br>
     88
     89<b>7.6.2014:</b> The card 7342 we are looking fore is just located in systems with memory expansion. These Mainframes are much rarer than the "small" IBM 1130 without the left-side table addition. Therefore, both the desired card as well as its circuit diagram are nowhere to be preserved.<br>
     90So we have worked out the circuit diagram of the wiring gradients and measurements and rebuilt the card. Now the core memory is running properly. This is a significant advance.
    8991               
    9092                </small>
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