Standard Rheostat, 300Ω, 0.9A Max Biology_Microscopy Reproduces Ewald von Kleist's 1745

Reproduces Ewald von Kleist's 1745 charge-storage device with concentric metal cups around a plastic dielectric

Features white enamel graduations every 50mL

portable enough for mobile demonstrations of current-driven magnetic field strength

Hand-cranked pulley steps up to a smaller dynamo pulley through a rubber belt

with DC output to 25V and AC to 24V at up to 6A for classroom electronics

Standard Rheostat, 300Ω, 0.9A Max Biology_Microscopy Reproduces Ewald von Kleist's 1745Standard rheostat at 300 ohms and 0. 9A with oxidized constantan winding on a vitreous enameled steel tube and a phosphor bronze sliding contact, with two 4mm terminal posts.