Spare Time Gizmos Nixie Clock

This was a project that Bob and I (mostly Bob) started. It was to be an CDP1802 Nixie clock. However, some of the footprints were wrong, and I never got around to building up the 2 sets of PCBs I have.

• Upper board schematic (CPU, memory, etc) (129 KB)
• Lower board schematic (Nixies, HV Power supply) (68 KB)