US$ 1750.00
this motor-generator pairs a split-ring commutator against slip rings with bulb indicators
Six-piece 3-inch optical lens set combining three double-convex and three double-concave glass lenses at 200mm
Low-noise 220V blower with a detachable 60-inch hose and adjustable flow control
and intestines
4mm Spring-Loaded Adjustable Slit for Optics Bench Rod Size_23.6" this motor-generator pairs a split-ringSpring loaded 4mm slit on a rod attachment opens and closes smoothly under finger pressure, giving students a continuously variable aperture for diffraction and spectroscopy work.
US$ 1750.00
US$ 299.50
US$ 69.00
US$ 10.62
US$ 310.00
US$ 19.99
US$ 79.00