OK so you have built a large Van de Graaff Generator
now you want to take it a step further and up the spark current.
A good way to do that is to use a leyden jar and build up a large charge in it and watch the powerful sparks fly.
This Leyden jar is made from a 5 gallon bucket and stores enough electricity to kill you.
I strongly recommend building a smaller one unless you know what your doing.
The leyden jar is a very old design dating back to the late 1700's
Its simply put a high voltage high capacity capacitor.
Built properly and treated like a loaded gun you too can make your own miniature lightning bolts.
Trust me when i tell you that a discharge from this device is loud enough to damage your hearing so wear hearing protection.
I have experimented with high voltage for many years this is one of the more dangerous projects I have completed so please be careful. I accept no responsibility for your injury or death.
Have fun and please be safe,
Next up parts list.