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Category: Z-80

Z-80 Homebrew – First Update

I’ve always wanted to build my own computer from the circuit up; so inspired by Steve Ciarcia’s Build Your Own Z-80 Computer and my success building a computer from CMOS Logic I thought it was time to have a go! Most of the components are no longer available, but the Z-80 CPU itself is still in production. So with a bit of re-designing it should be easy to build a computer following Ciarcia’s design. First up: the power supply. It’s a simple design based around a 7805 regulator that takes a 9V supply from an old transformer and reduces it…