This is a very cool COSMAC VIP that has been slightly modded to act as a front-end processor for an SC/MP II processor board with a custom-built front panel for the SC/MP as well as some interesting add-ons for the VIP (PROM programmer, Tiny BASIC ROM card, CDP1855 math co-processor) and more.
Full description and links to photos here: http://www.vcfed.org/forum/showthread.php?58035-RCA-COSMAC-VIP-with-SC-MP-II-co-processor-and-more&highlight= I also produced a video to show off the setup for historical purposes: https://www.youtube.com/watch?v=BozGSTumwXc Thanks! Sellam