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ESAW Motor Driven Color Optical Disk (LO-276)A rotating disc with an electric motor, its speed can be controlled by a potentiometer fitted on outer side of a plastic moulded case (140x80x36) mm approx. Different colour discs are designed to allow variation of the surface area visible and of the mix of the colour. The following colours may be o..

LO-276 - ESAW Spherical MirrorUnmounted spherical mirrors, optically worked, silvered back with protective coating.276 Concave Mirror276 Convex MirrorDiameter 50mm            Diameter 60mmFocal Length             ..