Just thought I would mention this:
http://www.ebay.com/itm/Unbuilt-McGr...dl#ht_4586wt_0
It is quite similar to a "CREI 680" system that I have - except for branding, and that mine looks like trash. This eBay item looks in near perfect and unbuilt condition! It is a Motorola 6800 series computer/electronics trainer and can be operated at different levels of completion. Although it has a keyboard, it also has blinkenlights on a smaller control panel.
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