Sound & Waves 2
Product Details:
sonometer 3-wire pattern p-7390
comprises a hollow wooden resonance box 120 x 12. 5 x 10 cms (l x w x h. ) two wooden rules 1 mtr. Long subdivided in mms, between fixed bridges over which wires are stretched. A spring balance 100 x 5 n is fitted on one wire. Tension exerted can thus be measured and also adjustable finely by a wing nut resting against a plate at the end of the apparatus, second wire passes over a pulley and can be loaded as desired, a third wire is given for comparison and its tension adjustable by a wrest pin.
the wires are made of rustless steel having uniform density. Distance between fixed bridges is kept 720 mm. Supplied complete with three movable bridges, a set of four wires 1. 5 mtr. Each. Supplied without weights.
sonometer p-7391
comprising a wooden resonance box of 114cm length, 12. 5cm width and 10cm height, with two rules 1 mt. Long sub-divided into millimeters. One each brass and steel wire of different dia. Attached to fixed bridge and tensioned by line adjustments pegs, two moveable bridges, pulley and fixed screw to enable a third wire to be fixed for tensioning by masses. One each additional wire of steel and brass, each 1. 5mt. Length and of 22swg.