The results show that after triggering discharge, the wall charges can be varied by adjusting the driving waveform, and the high wall voltage can be obtained.

The ac adapter (as it's more accurately known) simply converts the ac current from a wall outlet into low-voltage, low-amperage DC current that it provides via a USB port.

Influence of Ne pressure, input voltage, wall temperature and discharge tube atmosphere on optimal delay of the CVL oscillator - amplifier chain is studied.