This video suggests one easy and economical approach to a power supply for large electrodeless plasma tubes. Such devices operate from highfrequency, highvoltage electricity that must be obtained from a suitable circuit containing a switchmode inverter and a highturnsratio stepup transformer. (Alternatively, CW Tesla coils are very effective). The supplies in small commercial plasma globes cannot drive many of the larger custom and artistic displays, necessitating a DIY approach to the power supply...or spending a lot of money. I describe the use of a small encapsulated commerciallyavailable transformer (the HVT01 from Images Scientific, http://www.imagesco.com/highvoltage/..., being driven by a DCpowered inverter, the PVM12 sold by Information Unlimited (www.amazing1.com/), to provide about 60W to a variety of plasma loads. The PVM12's circuit is based on the SG3525A PWM chip switching a couple mosfets in pushpull mode, and the schematic may be found here: http://www.capturedlightning.org/hot...