Theory: Plasma globes involve discharges through a low-pressure inert gas such as argon, neon, or helium. A high-voltage (5 - 10 kV), low-current, high-frequency (20 kHz signal is produced by a flyback transformer. The color produced is determined by the gas in the globe.
Description: Our plasma globe is a commercial device hat will either give a continuous display or a display that responds to loud sounds.
Setup time: 5 minutes
A good description of the plasma globe can be found at this web site