I too have been searching for documentation/schematics for the Cambridge
Memories, Inc. Expandacore18 4k core memory boards. I have an old
Diversified Numeric Applications Med PL/185 machine which is a clone of the
Raytheon 703. This machine has 16k of core with 4 of these boards.
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THE BLUES IS THE TRUTH. IF IT'S NOT THE TRUTH, IT'S NOT THE BLUES. (Willie
Dixon)