Original poster: mercurus2000 <mercurus2000@xxxxxxx>They're neon tubes with a phosphor coating on the inside of the glass to give a blue glow, they have the same ionizing energy as neon.
Tesla list wrote:
Original poster: Ed Phillips <evp@xxxxxxxxxxx> Adam, Thanks very much for offering these things! I'm in the middle of moving so I was only able to do a quick test but sure enough I got the blue neon glow I was hoping for."Blue isn't exactly the color one expects from neon, but rather a bright orange red. Are these really neon filled or has neon become a generic name for gas discharge lamps just as "transistor" seems to mean "transistor radio" these days?Ed