US$ 704.50
Single-pole double-throw switch on a demonstration base
Charged porous pot with a zinc rod inside a rectangular polythene jar
Built for long-bench convergence flexibility
sized for fine-print reading and convex-lens image-formation work in introductory optics
Compact regulated +15V DC power pack rated at 1 A
Variable Angle Glass Prism, 15° x 15° x 150° Size_Medium Single-pole double-throw switch on aGlass prism with a 15 degree apex and 15 x 15 x 150 angles, the doubled apex prism producing about twice the deviation of the 5 unit while still in the small angle regime.
US$ 704.50
US$ 969.50