US$ 17.90
one AC output
holding twelve tubes up to 22 mm diameter for classroom and professional bench setups
5A standard rheostat with oxidized constantan winding on a vitreous-enameled steel tube
Aluminum strip testing clamp with wing-nut fixing
Used to draw electrons from glass and ebonite rods during rubbing
Plano-Cylindrical Lens, +10 Diopter State_Solid one AC outputPairs a 50 by 50mm plano cylindrical glass lens with +10 diopter optical power, focusing light along a single axis for astigmatism correction, line focus, and cylindrical optics demos.
US$ 17.90
US$ 54.90
US$ 54.90
US$ 187.50
US$ 40.00
US$ 59.90