How to Build a Van Der Graaf Generator - Part 4 - Making the toroid

Jan 8, 2012
The toroid is made from a piece of vacuum cleaner hose, some builder's resin and aluminium duct tape. Although the toroid is for a van der graaf it could easily be adapted to make a topload for a tesla coil by bending the vacuum hose around a plastic disc cut from good old builders board.