US$ 149.48
5 inch diameter unit produces a +/-3mm controlled vibration on a string or ripple-tank dipper when driven by an external square-wave generator
100 by 100mm friction slider
5 inch Alnico horseshoe sits between the 1
and four rotary controls
47" 3-Wire Sonometer for Mersenne's Law Biology_Microscopy 5 inch diameter unit producesThree wire setup pairs a 100N spring balanced string, a pulley loaded weighted string, and a wrist pin string across a 720mm bridge span on a 1290 x 130 x 110mm hollow wooden sounding box.
US$ 149.48
US$ 567.50
US$ 3749.50
US$ 34999.50
US$ 348.74