I tried getting us writing something along these lines within my team at work. I think I might revive the effort along the lines of what’s outlined here.
We recently restored an Apollo Guidance Computer, the computer that provided guidance, navigation, and control onboard the Apollo flights to the Moon. This historic computer was one of the first to use integrated circuits and its CPU was built entirely from NOR gates. In this blog post, I describe the architecture and circuitry of the CPU.
Also see: Better sound for the Archimedes with OPA4134PA Burr Brown OA.