Air-Cooled Rheostat, 125Ω Subcategory_Temperature and Heat Reproduces Ewald von Kleist's 1745

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

producing a smaller flame footprint suited to individual student work on crowded benches

capable of producing repeated sparks once the base is charged by friction

sized at 10 inches for focused respiratory anatomy teaching

Oscilloscope with feel of Digital touch

Air-Cooled Rheostat, 125Ω Subcategory_Temperature and Heat Reproduces Ewald von Kleist's 1745Air cooled rheostat at 125 ohms and 1. 6A with constantan winding on a 300x44mm vitreous enameled tube and a slide bar carriage carrying a phosphor bronze contact.