Experiment board with basic circuits for electricity and electronics: circuit components, Ohm™s law, Kirchhoff™s laws, rheostat and potentiometer circuits, two way switching, charging and discharging curves of a capacitor, inductive effects in DC and AC circuits. Simple semiconductor circuits for determining diode characteristics, rectifier circuits, filter factors. The components can be interconnected via 2 mm sockets using jumpers and experiment leads. Six 2 mm /4 mm safety socket adapters are provided for connecting 4 mm experiment leads.