Sonometer, Simple Pattern, Improved

For Studying The Laws Of Vibrating Strings. Comprises A Pair Of Metal Strings Mounted On Wooden Baseboard About 700Mm Long With One Side Having 50N Spring Balances And Other Fixed On Thumb Screw Geared Mechanism For Adjusting Tension In Wires. Includes 3 Bridges And A Pair Of 1M Long Steel Wire Of 25 Swg. (Sonometer, Simple Pattern, Improved)