Just for Fun MBC's
Just-for-Fun Fabio Defabis MBCs: Z80-MBC2, V20-MBC, 68K-MBC All well described on hackaday: Z80-MBC2 V20-MBC...

Multi-purpose Z80 card
Universal Multipurpose Z80 card. Elektor 1992. Universele Z80 kaart deel 1 en 2 Dutch Multi-purpose Z80 ...

Mini Z80 System
A very small but versatile Z80 system. Elektor 1992. Mini Z80 System RAM extension for M...

CPU NOP testers
While building the Retro Chip Tester, designed by Stephan Slabihoud, and documented on his 8bit-museum website, I no...