About the author : Dalibor
As I mentioned before, I am going to use a borosilicate glass in combination with tungsten wire. This glass is used in labs for scientific glass blowing, so the first place where I started to look for that glass were e-shops with lab supplies. There ale lots of suppliers, but all want some minimum quantity to order – tens or hundreds tubes of each diameter. But I had a luck, I found a 60% sale on 1500mm tubes, diameters from 12 to 20mm and a some 42mm, there were no minimum quantity needed. The glass brand is Simax, it is czech manufacturer.
Now I am looking for 6mm tubes, I will probably have to buy huge amount of tubes :-( ..
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Since nixies are cold cathode, and they are filled with low gas pressure, wouldn’t acrylic or polycarbonate work as a substitute for the glass envelope?
I was thinking about trying out this idea, but it would take a substantial investment to test it out. Can you point out if there’s any reason you know of that plastic wouldn’t work instead of glass?