Standard Rheostat, Model B Material_Polypropylene providing a direct numeric current

providing a direct numeric current reading for student circuits where analog needle deflection would be too coarse to resolve cleanly

Nine-piece stainless steel hooked weight set spanning 10 to 1000 grams in a polished wooden storage block

this advanced ripple tank ships with vibration generator

transmitting maximum light when their axes align and nearly extinguishing it when crossed at 90 degrees

fanning apart visibly when a charged rod approaches to demonstrate electrostatic repulsion and induction

Standard Rheostat, Model B Material_Polypropylene providing a direct numeric currentStandard rheostat with oxidized constantan winding on a vitreous enameled steel tube and a heavy duty sliding contact, supplied with three binding posts for rheostat or potentiometer wiring.