Guys,
Here is an unbelievable deal on a TESLA COIL that will do the gas test as described. It's so cheap it's hard to believe they can sell it for this amount. I have tried them and they work well. I bought 3 just in case one breaks and put it in a plastic project box to use as a piece of test equipment. here is the address:
https://www.ebay.com/itm/15KV-High-V...19.m1438.l2649
Hope you guys can use this,
Dennis