1MV Van de Graff – First light

Details of the project

First light tonight 6″ sparks, not bad for the first time I’ve powered it up.

At the moment the limiting factors to the spark length/voltage is the unfinished top load and a problem with the belt. The top load has a very uneven surface, I believe I’m losing charge this way.

When the VDG starts charging the two sides of the belt are attracted to each other and they rub together, reducing the charging. I tried tightening the belt with no effect, so I have ordered 0.4mm (was 0.25mm) latex to make another thicker belt.

Work continues to complete the top load.