Description :
A motor driven assembly encased in a sturdy metal box. The motor driven lower roller rotates the upper assembly located on top of the insulated perspex pipe through a removable rubber belt. The motor operates on 230V AC supplied through a fused input socket. Under favourable conditions the unit can produce a potential of up to 200kV with spark of up to 80mm in length. A 4mm socket terminal is provided to earth the discharge sphere with an additional 4mm terminal on the main dome for attaching the accessories.