Hand Driven Van De Graaff Generator 

Hand operated, mounted on base. For the generation Large of electric charge, useful in electrostacs and for studying various phenomena associated with electric charge. Comprises a near spherical dome supported on top of an insulated, clear Perspex pillar on the base. A removable flat rubber belt rotates through rollers mounted at both the ends of Perspex pillar. Lower roller shahas a pulley driven by a hand operated crank through rubber belt. The connuousrotaaoof the flat rubber belt results in the accumulaao of charge on the dome, unl electri al breakdown of air surrounding the sphere occurs. With sufficient charge build up on the dome, bringing the earthed discharge sphere sufficiently close to it results in the transfer of charge from dome to ground in the form of electric spark. Earthing terminal provided on the base. Supplied with discharge sphere, mounted on a long insulated handle.