![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjo_hDbs-6guGHNnAGQg8O-vghYi-bdKDJLyDlO8TP4MBjUS90voU3h61I-7De4Pp_yCc0O45Uo6EK_lF4d5Sif3nUx4RxYGUPrNjc5XaB5xXBbHJwn2uZ6uAk_lJkcdeEXpB-atoXLgjI/s320/_DSC1939.JPG)
Prototype "breadboard" for Nixie tube circuit....power supply out of large plasma TV provides 200 vdc, with required start up logic controlled by Arduino micro-controller sequencing code. Nixie tube elements also controlled by Arduino through transistor array IC, top element illuminated in this image.