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26 Dec 2011
vpapanik writes:
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. For healing tubes, one can double the current (4 mA), baking the tube for several hours in order to remove cathode poisoning. Enjoy !
Nixie Tube IN-18 Tester / Healer - [Link]
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