All in all a pretty good catch. While it may be hard to get core for this
thing you can find MOS memory systems at various places. The thing to worry
about will be the top connectors. If you don't have them you can make them
but it isn't fun. Some folks on the pdp8-lovers list might have spares.
Why would it be difficult to make replacement top connectors? I must be
missing something obvious, but cant you just crimp ribbon cable onto
a pair of 36 pin edgeboard connectors? Or dont they make IDC connectors
of the appropriate size?
-Lawrence LeMay