If you’ve been following me on twitter, you know I received a -30kV / 10mA Glassman a few days ago. Now it’s online and it kicks ass. Current limiting, remote controllable… it’s the second unit from the top:
Here is an air plasma it produced:
With current limiting and good air metering, we can get a stable plasma. I notice you get a sense for the plasma just by _listening_ to the glassman. When the plasma is unstable the glassman softly clicks along with the plasma burst.
Backside, second from top:
To get full manual control, you wire the jumpers like this:
I’ve already had some success remote controlling the Glassman. Looks like I’ll be using digital potentiometers again.
Here is a un-enhanced photo of the plasma… it’s much brighter:
Also worth a mention – the same plasma can appear either blue or purple depending on ambient lighting and perhaps other factors. So we can’t trust the color in the photo without further controls: