Electromagnet Demonstrator with 4mm Terminals Science at Home safely grounding accumulated static charge

safely grounding accumulated static charge during high-voltage demonstration work

spanning cell voltages up through high-tension supply outputs

and 4-pole armature configurations on the same motor frame by swapping interchangeable enameled-copper armatures past a permanent bar magnet on a disc commutator

Twenty-five-watt soldering iron with a wooden bakelite handle and a long-life pencil bit

Precision-cut interchangeable plugs in split brass contact blocks select between constantan-wire decades

Electromagnet Demonstrator with 4mm Terminals Science at Home safely grounding accumulated static chargeDemonstrates how current through a coil produces a controllable magnetic field, this electromagnet on a 4mm terminal base slots inline with other modules for circuit driven magnetism work.