Hi All, I have found all but issue No.4 of "The Computer Hobbyist", written in 1975. Has anyone found this issue and would be willing to trade copies? Am also thinking of building a early/mid 1970's era computer. If made with "old stock" parts, how would it fit in with the other "classic" computers as far as the history? The original factory made types (Altair, Mark 8, SWTP) sound too hard to find and too much money for me. Am thinking of using Vector type cards with the common 2x22 pin edge connector. If more pins are needed, there is the 56 pin "STD" bus size or the 2x36 pin connectors. The S-100 bus seems to have many more pins than needed. Cards would be the roughly 4.5 x 6.5 inches. Cards used to be sold in this size using the 2102 static ram's, I think 4k. The 2102's are still relatively easily found, as well as standard TTL IC's. In 5 or more years, this may not be true. Sure there are 62256 static ram chips, 27256's, etc, but they came later. -Dave