"serv Dial Sud & sars"

Bigger design for easy connections.

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.

Eliminates the Need for a Separate Power Supply

This newly designed rheostat features a protective cover.

Used to open and close an electrical circuit momentarily, it is also excellent for demonstrating Morse code.

A high quality PVC coated copper wire. AWG 18.

The Resistance Substitution Apparatus is convenient for general-purpose resistance work.

Classroom Package of Large Needles

Soft iron is a classic example of a readily magnetized material.

Electric Motor