Dry Field Mapping Kit, includes cork-covered base, 30cmx26cm; pad of 25 sheets pre-printed conductive paper 28cmx21.5cm; pad of 100 sheets preprinted paper for drawing fields; ten metal-headed push pins; a silver conductive pen
Tesla Coil, Tabletop, 220/240V, 50/60Hz, hands-free. It teaches about transformer, electromagnetism, resonating electrical circuit, inductance, capacitance, power transmission. The set consists of two antenna plate, small neon lightbulb, mini discharge electrode and lamp socket.