We’ve seen lots of interesting Nixie clocks but this one definitely leaves impression. The fact itself that it is build without using a PCB draws attention. Its a free-form wiring creation. Its driven by Atmega8 microcontroller which drives high voltage transistors. Of course there is a high voltage circuit floating and as someone is joking – its second feature might be bug zapper.
Author claims that schematics and firmware has been lost so enjoy the action video.