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 ...

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

Budgetronics Z80 retro computer
Z80 Retrocomputer building kit (Budgetronics.eu) A build of Grant Searle's famous simple Z80 design http://searle....