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
Van De Graaff Generator - Motor Driven, Up To 200Kv Depending On Conditions With Up To A 60Mm Spark, Uses 110 Or 220V Ac 150Mm Diameter Sphere, Acrylic Shaft Allows For Full Visibility, Connections : 4Mm Sockets In Dome And Base, Tracking : Belt-Tracking
Van De Graaff Generator, Specially designed for electrostatic experiments and where continuous source of high voltage required. Fitted on base with smooth running DC Motor, operates on 220 volts A.C. 50 Hz
Van De Graaff Generator, Hand Crank, Hand Operated, Metal Sphere Of Dia. 25Cm Insulated By A Plastic Column Supporting The Pulley Assembly. Complete With Accessories.