An efficient design for all the usual electrostatic experiments and for where a continuous source of high voltage is required. It has a strong metal base with profiled hand grips housing a quiet running a.c. motor. The discharge sphere may be plugged into the base or supported separately linked to the arching post with a standard 4mm connecting lead.Charge Collecting Belt: silicone rubber having excellent insulation resistanceTracking: belt-tracking easily adjustedCharge Collecting Combs: aluminium mesh design to be clearly visibleSpheres: aluminium 230mm diameterConnections: 4mm sockets in dome and baseVoltage Developed: up to 200kV depending on ambient conditions with a spark length of 60mmDischarger: spherical 75mm diameter on rod for plugging into the base earth socket or support in a retort standSupplied with 1.5m mains lead illuminated mains on/off switch and fuseThis device is compliant to EN61010-2010 with certificates available on requestDimensions: 225mm x 180mm x 480mm.Spares available:White Plastic Discharge Sphere Holders: B8R08205 - Pack of 10Plastic Sphere Holder Connector: B8R08207 - Pack of 10Charge Collecting Belt: B8H26769O-Ring Seal: B8R08206 - Pack of 10