Simple Switch Demonstrator with 4mm Terminals Capacity_25mL deflecting a pivoting cobalt-steel compass

deflecting a pivoting cobalt-steel compass needle inside a rectangular conductor frame to show that current generates a magnetic field

adjustable via motor voltage to mimic temperature and float weight to mimic pressure

Millimeter-graphed 100 x 75mm screen on a 2

and ice-pail induction

LPG Bunsen burner with an anti-tip cast iron base and adjustable air flow

Simple Switch Demonstrator with 4mm Terminals Capacity_25mL deflecting a pivoting cobalt-steel compassSingle open or closed switch on a 4mm terminal base, providing the cleanest hand operated way to make and break a circuit during early electricity instruction with stackable modules.