Van de Graaf generator

[Vermes]

This device generates 8-12cm discharges and 20-25cm poorly visible sparks.
This device can be build with elements, which everyone can get/find in their homes:

• the sphere is made of an old globe 22cm diameter covered with aluminum foil
• brushes are made of simple filament between PCBs
• the transmission belt is cut of an old ball (from its bladder)
• the box is made of chipboard

The purpose of making a such big box was to put a generator inside, but after tests, the discharges were large enough.



Some additional information:

• the aluminum foil was cut to 3cm wide strips and glued to the globe
• the transmission belt is 35cm long.
• the transformer has on out 30V of tension.
• because of heating of the motor, this device can work about 20 minutes long before a break has to be made

Link to original thread – Generator van de Graaffa