US$ 59.50
Class-visible 12-inch demonstration meter with magnetically damped moving coil and Perspex front-and-back panels
01 mm across a 0 to 165 mm scale
overhead spring
Built for biology dissection work
and brainstem for neurology
Concave Glass Mirror, 75mm Diameter, 150mm Focal Length Pack Size_14 Class-visible 12-inch demonstration meter withConcave glass mirror at 75mm diameter and 150mm focal length on a ~3mm thick blank, the f 2 geometry balancing throw and magnification in introductory reflector optics.