Yet another Nixie clock project!
Some highlights:
- HV5530, HV5522 or similar driven IN-16 tubes
- CD4504B for 3.3V to 12V level shifting
- ESP8266 for time synchronization
- LM1117-3.3V for logic power supply
- No step up converter on-board, pin headers for connecting third party power supply third party power supply
- HV5530 symbol created using Quick KICAD Library Component Builder
Some KiCad screenshots:
