Homemade Van de Graaff generator
Medium sized Van de Graaff generátor with a 300mm sphere, PWM motor control. Took me 2 months to build. It makes around 300kV. I can feel the static field from 1,5 meter. Sparks about 35cm, but it rains out there, so this will get bigger when the humidity will drop. 10uA charging current.
