A slotted hardboard disc, with finger hole, is pivoted on a bearing mounted which also acts as a convenient handle. The disc has twelve radial slots 50x3mm extending to its edge. Diameter of the disc is 250mm....
HAND STROBOSCOPE FOR RIPPLE TANK Simple form stroboscope use with ripple tank, a disc of 250 mm dia. with 12 equispaced slots and a finger hole, rotating on its axis, with handle....
Stroboscope 0-10000 RPM, Digital LCD display, Mains operated, course & fine knobs for matching the stroboscope with the speed of the moving object.ONOff switch at the rear of the instrument, shape like a torch flash....
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