But they need about 200 volts to glow and it makes them dangerous and difficult to drive, at least for me.
So i decided to make something similar, a numeric display able to work with low voltages.
After thinking about it i had the idea of making a lightguide display with some glass and copper tape. The result is that ''glass nixie'' wich I'll explain how to make.
Step 1: Materials
-10 smd LEDs (3mm)
-The PCB for the LEDs
-10 glass or acrylic panels (5x3cmx3mm)
-An enclosure for the 10 panels (mine is a glass box)
-Copper adhesive tape
-11 male headers (10+1)
-A resistor (50-330ohm)
Step 2: Making the ''cathodes''
The ones i made are 3x5cm pieces from a 3mm panel. If you get smaller LEDs you can use a 2 or 1mm panel wich will rduce the final size significantly.
Once you have the ''cathodes'', using a small drilling mill, draw with dots the numbers (0-9) in the panels.
Step 3: Spacers
Then clean all the panels with window cleaner and a soft cloth.
Make sure they're as clean as possible because ten times the dirt of one is too much dirt and it won't look clear.
Step 4: The PCB
Then solder the LEDs carefully aligned and insert and solder the header pins and the resistor.
Make sure each LED matches with it's panel, if not, heat up the soldering and place the LED correctly.
Step 5: Bonding the panels
Once soldered, cover the soldering with more copper tape for a better looking.