link: https://www.ebay.com/itm/273207889695 This one looks like it was essentially built and never used. Nothing has been added to the prototype area, it looks like the EXORcisor bus connection was never plugged in to a socket, and there was no additional RAM in U18/U19 sockets. I cleaned it up, removed some areas of excessive rosin flux, and brought the board up on a 5V bench supply. It draws around 1A with address/data info on the displays. Ran through the sample program in the manual, which worked fine. I added two Fairchild branded 6810 SRAMs to bring it up to a total of 512 whole bytes of memory :) Didn't test the cassette interface, I no longer have a cassette recorder kicking around. If you're interested and will be at VCF East, let me know -- I'll take substantially less if I don't have to pay eBay/PayPal fees and ship. Thanks, Jonathan