UPPER & LOWER JAW
VACUM PUMP (OIL FREE), PORTABLE DIAPHRAGM TYPE
VACUUM PUMP OIL FILLED
VACUUM PUMP OIL FREE
VAN DE GRAFF GENERATOR HAND DRIVEN
PHY-00758
Hand operated, mounted on base. For the generation of electric charge, useful in electrostatics 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 shaft has a pulley driven by a hand operated crank through rubber belt. Supplied with a discharging sphere 100 mm dia.
VAN DE GRAFF GENERATOR MOTOR DRIVEN
PHY-00761
The low voltage powered model is designed for Electrostatic experiments, Fitted on base with smooth running DC Motor, operates on 220 volts A.C. 50 Hz. Power input is via a pair of color coded 4 mm sockets. Mains operated versions are provided with 1.5 meters of 3 core mains cable. The earth core of the mains leads being connected to the metal structure of the apparatus. Both voltage & mains versions also have independent 4 mm earth sockets with spherical discharger of 75 mm dia with insulated handle.