Slotted metal disc, with finger hole and having 12 radial slots, mounted on a handle.
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The apparatus consists of a framed tray with a plexi glass base and detachable legs, overall size of tray 600 x 520 x 56 mm deep. A pair of support rods with integral ‘G’ clamps is provided which can be attached to the sides of the tank and used to carry the wave generating system. A set of 4 metal barriers (reflectors) is included consisting of a pair of straight barriers 150 x 25 mm, a curved barrier of 215mm chord length x 25mm high and a short, straight barrier of 25 x 25 mm.
Glass Tube approx. 84cm long and 2.5cm dia mounted on retort stand with clamp and boss, with 500ml glass bulb supported on iron ring, connecting rubber tubing and spring clip.
Overall length when fully extended is about 840 mm approx., 540 mm when closed, stoppered, and made of varnished wood with movable piston marked with the chromatic scale from C (256) to (512)
Three Tuning forks are mounted on three wooden resonance boxes dimensions of which are compatible with frequency of the forks to produce a strong sustained tone. Forks are nickel plated with shanks to screw in the bushes on the top of the boxes. Each set supplied with rubber headed hammer.
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