KIM-1 from schematics ? And where did he get the 6530-2 and -3 without taking them from a real KIM ? I guess it was more like a KIM alike with 6532's (with a bit of additional decoding, changing two lines and just not using half of the RAM they could work as 6530 without ROM) and a 2716 (also with additional address decoding). I think about a KIM clone since almost two years (the KIM was my second computer, the first I did build myself), but I can'T come up with a solution for the 6530 problem other than building new chips, or changing the design. Also the keyboad might be a problem, together with various discrete parts, that are just look different nowadays. Even if the main parts are placed like in the original (maybe hiding the ROM below the CPU using SMD parts :) it will be a vissible diference, greater than just in the conection layer. Gruss Hans -- Ich denke, also bin ich, also gut HRK