Fred Niell has made a functional nixie clock using a PIC microcontroller. Fred provides schematics and code so that you can build your own. But be careful since this clock operates at 175 Volts!

“I decided to use point-to-point wiring for this prototype. That was difficult. I wouldn’t suggest it for a relatively complex digital design, such as this. I also fit the clock into a wooden shadow-box. I think it is quite pleasing to see the wires and the parts on the breadboard. While this road-warrior chic may not appeal to everyone, it is quite to my liking.”

Here are a few pictures of the clock