US$ 20.00
condensing lens
Charged porous pot with a zinc rod inside a rectangular polythene jar
Built for long-bench convergence flexibility
Compact regulated +15V DC power pack rated at 1 A
Single-pole double-throw switch on a demonstration base
Variable Angle Glass Prism, 15° x 15° x 150° Size_Medium condensing lensGlass 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$ 20.00
US$ 34.95
US$ 22.94
US$ 40.00
US$ 347.50
US$ 247.50