Conductors, Set of three, Made of brass, interchangeable on pillars, fitted with insulators of ebonite on base. Spheres 5 cm diameter, Cylinder 12.5 x 5 cm diameter, Cone 10 x 5 cm
Coulombmeter With Rechargeable Battery, Power Supply: 9 V Rechargeable Battery Via Dc Co-Axial Power Socket, Load Current:Max. 500 Ma, Connectors: 4-mm Safety Sockets, Dimensions: 105 X 75 X 35 mm3 Approx, Consumption Can Be Displayed By Means Of A Voltmeter.