Who would have thought that in 2012 we would have a need for Nixie tube testers since this was a technology that was only developed and used because things like LEDs didn’t exist. Since the technology is so cool it has remained as a technology that is used in some DIY kits and projects.
Thanks for sharing this with us Vassilis.
“A simple device for testing and/or healing Nixie tubes of IN-18 type. An 11-pole switch is connected in series with a 50 KΩ pot (+ 470 Ω resistor for safety), powering from an 180V DC source. Normal operation at 2 mA is shown. “