Standard Demonstration Dynamo with Hand Driver on Base cylinder sodium benzoate

sodium benzoate

and connecting leads mounted on 4mm-socketed bases for building circuits from 40-plus components

the four-sided geometry letting students explore deviation through non-equilateral cross-sections

Liquid propane Bunsen burner adds a flame stabilizer and adjustable air vent for consistent

Beech wood test tube rack accommodates 13 tubes up to 25mm diameter in a 10

Standard Demonstration Dynamo with Hand Driver on Base cylinder sodium benzoateHand cranked pulley steps up to a smaller dynamo pulley through a rubber belt, lighting an LED at the 4mm sockets; the unit also runs as a motor on 6 8V DC for energy conversion demos.