NMOS logic was what made higly integrated digital circuits in the 70ies and early 80ies tick. In contrast to logic based on bipolar transistors it never found widespread commercial use as discrete implementation where transistors and resistors in single packages are used.
However, due to it's simplicity and robustness, discrete NMOS logic is an excellent candidate to build discrete logic circuits for educational purposes and fun.
This project explores transistor selection and optimization of discrete NMOS logic.
Click here to see all logs in order: https://hackaday.io/project/175015/logs?sort=oldest