Concave Glass Mirror, 75mm Diameter, 300mm Focal Length Item Type_Density Cubes & Cylinders Copper plate with 4mm socket

Copper plate with 4mm socket terminals for the simple-cell apparatus

75-inch analog-to-digital converter samples and quantizes a continuous input into a binary digital output for student visualization

at plus-or-minus 10% tolerance for high-impedance work

Higher-range 50V multiplier for galvanometer conversion

Barlow's Wheel apparatus with neodymium magnets and a heavy base

Concave Glass Mirror, 75mm Diameter, 300mm Focal Length Item Type_Density Cubes & Cylinders Copper plate with 4mm socketConcave glass mirror, 75mm diameter and 300mm focal length, ~3mm thick, the f 4 curvature stretching the focal throw for projection style image formation and reflector telescope analogues.