Index: en/computer/ibm1130.php
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--- en/computer/ibm1130.php (revision 564)
+++ en/computer/ibm1130.php (revision 570)
@@ -85,6 +85,8 @@
from the machine! That is the worst case for every restoration project! A
closer inspection revealed, that a second board, 4628, is also missing from
-the printer control. We are now looking desperately for replacement boards or
-at least the schematics. If you can help, please let us know!
+the printer control.
+
+7.6.2014: 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.
+So 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.