Auto Transformer, 5A Botany_Botany Models 5-inch skeleton in various positions

5-inch skeleton in various positions for kinesiology demonstrations

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

organic purification

Unequal-wheel pulley with a 2-inch and a 1

Assorted pack of 100 natural bark cork stoppers includes various sizes for comprehensive laboratory vessel sealing and chemistry applications

Auto Transformer, 5A Botany_Botany Models 5-inch skeleton in various positionsHigher current 5A toroidally wound autotransformer with continuously variable 0 26V output, sized for laboratory work where AC voltage needs adjusting under heavier loads.