A rubber ring mounted on a metal disc with steel rod and wooden handle
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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)
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.
It consists of a tube 100cm long, 25mm dia mounted on a stand which is fitted with leveling screws. The lower end of the rubber tubing provided is connected to the 500ml glass reservoir which slides on a metal rod and can be raised or lowered for adjusting the length of column of air. It is used to measure the velocity of sound waves in air at room temperature by using a tuning fork.
Comprising a hollow wooden resonance box, with two meter rules graduated in millimetres, mounted on top on either side along the length.
One each of brass and steel wires of different diameter attached to fixed bridge on one end of the box and tensioned by wrest pins at the other end. A pulley mounted at the end supports third wire over it with masses suspended to the wire end. Includes two short and two long bridges for adjusting length of vibrating strings, and additional wires one each of steel and brass of 22SWG.
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