consists of 24 nos. aluminium disc
supporting a series of iron-nickel rods.
By revolving the handle, the motion is
transmitted successively from one rod
to the next, operating as a wave
traveling to the top and back, by this,
movement of waves can be observed.
for producing vibrations in the
stretched strings. An electromagnet
operating on 6V is positioned
between both the prongs and can slide
along the length of the prong to adjust
amplitude of vibrations. End of both
prongs have a stylus for frequency
measurement.
