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GP-583.1 ORGAN PIPE Varnished wood with glass front and membrane suspended on cord for loading with sand to show positions of nodes and antinodes. Overall length 760mm.  GP-584.1 ORGAN PIPE SLIDING With graduated sliding piston. The organ pipe is of a square section, of polished wood and fitted with a tapered mouthpiece. The slider is also square in section,32x32mm, of wood and with a knob at the end for easy control. The slider has a scribed and lettered line for each note which may be aligned with the end of the pipe to give a diatonic scale from c 256 to c 512. Overall dimensions closed 540x50x50mm.  GP-585.1 WHIRLING TABLE Overall height 430mm for use in vertical or horizontal position, fitted with handwheel and wire helix belt drive to pulley and with the adapter supplied all accept colour disc.  GP-585.2 ORGAN PIPE Open ended, square section, with tapered mouthpiece. The organ pipe is of a polished wood and has an air column length of 405mm approximately, which gives a note approximating to A 426. Overall Dimensions 520x50x50mm  GP-588.1 SAVART’S TOOTHED WHEELS A set of four toothed wheels 75mm dia on a common spindle. The wheels have 40, 50, 60 and 80 teeth respectively giving intervals of 1:5/4:3/2:2 and thus forming the basic major chord. Page : 1 | 2 |