"serv Dial Sud & sars"

Spare pith balls for pith ball electroscope.

Flash lamp bulbs perfect for simple circuit activities.

Diodes for PCB or panel mount.

This large Van de Graff generator uniquely offers alternative drive modes, either hand-cranked or motor driven.

Quality ceramic resistors, perfect for physics experiments.

Quality resistors for electrical experiments.

Pieces of reusable zinc-plated iron wire for magnetic field experiments.