Here’s a fun DIY for experimenting with some high voltage from spare TV parts.
In this Instructable you will learn how to make a High Voltage High Frequency power supply in 5 minutes and for less than $20.
All you need is a compact fluorescent light (CFL) and a flyback transformer.
Flyback transformers are found in TVs and CRT monitors. They make the high voltage, high frequency current necessary to trace the electron beam across the screen. They are small and compact, and you can take them out from an old computer monitor or TV.