With quality physics apparatus you can trust, Sargent-Welch offers this Variable Speed Van de Graaff Generator for your electrostatic studies.
This larger unit features a variable-speed motor that drives the internal rubber belt. Charges are transported by the belt to the 24cm diameter insulated sphere, where they accumulate to build a voltage of up to 250,000V.
Despite this large voltage, the total amount of charge available is small and suitable for electrostatic demonstration equipment.
Easily delivers 810cm long sparks.
The unit is 73cm high, and operates on 115VAC/60Hz.
Sphere is easily removed for cleaning.
Includes instructions.
Replacement belt measures 19-1/4" flat length x 1-1/4" wide.
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