Our Clock PCB for the PJ5 TTL CPU project. Variable clock speed from 4Mhz down to 0.0018hz (8.9 minutes). Also generates the second phase of the main clock, has run/pause/halt functionality and additionally gives us LED brightness controls.. Coupe of minor mistakes, so there will be another revision of this PCB.

More details on our blog - https://pj5cpu.wordpress.com/