On the topic of the viability of a Digi-Comp I re-issue... In the past three months, two kits have been put up for auction on eBay. One fetched over $421.50. Most recently, an usassembled kit went for $148.50 after 22 bids by 10 distinct bidders. I personally have always wished for a "version 2," with tighter tolerances, smoother action, and perhaps even 4 "flip-flops" instead of the standard 3. Brass or aluminum instead of plastic would add an especially nice touch. After all, who's wife is going to let her husband display a plastic computer in the living room? On the other hand, a nice polished brass model in a glass case... FYI, there is a YahooGroups group named "friendsofdigicomp" with 178 members. Oh, right.... So why am I posting to the Classic Computing mailing list? Because a ClassicCmp member wrote me to say: "One person I know has taken molds from his example and is planng on re-issuing it as a kit." Whoever you are, I thought you'd be interested in the present supply-and-demand situation. A limited run of 100 at $50 a piece would probably sell-out without too much effort. My impression is that the vast majority of the friendsofdigicomp group members -don't- have one anymore. (Mine got thrown away when we moved in 1971...) Regards, --Tim McNerney Newton, MA Postscripts... Recently someone submitted a schematic of the Digi-Comp I electronic equivalent to friendsofdigicomp. I believe you need to join the group to view this: http://groups.yahoo.com/group/friendsofdigicomp/files/DC1-PLA.pdf BTW, I have DXF format CAD models of all the plastic parts, but only in 2D. There are scans of the plastic parts and manuals at the YahooGroups site.