I don't think he was focusing on performance. Bill Buzbee, of homebrewcpu.com, built his the same way, with wire-wrapped TTLs. He did it because he wanted "touc

I don't think he was focusing on performance. Bill Buzbee, of homebrewcpu.com, built his the same way, with wire-wrapped TTLs. He did it because he wanted "touch the magic" of those early machines. I imagine there is something very satisfying of individually wire-wrapping thousands of connections and dealing with the minutiae of a complicated electronic device that prototyping a FPGA just can't give you, especially for a pet hobby.