Make Something with Nixie Tubes

I love old things. I collect old electronic stuffs, including this:

Nixie tubes. They are all older than me. So cool!

To make it work, we need a 170 VDC. That's bit tricky. I've been working on a project for a long time, finally got to this step:

With the help from this board, I can get a very stable 170VDC from a 5VDC.

I'm now working on the firmware. It'll be fun!