Ames Kit for Acoustical Demonstrations

 This educational kit comes in a fitted  case, and it combines the tuning fork with half-wave open tube to produce an integrally-coupled tuning fork resonator cavity, and can be used to demonstrate sympathetic vibration, “beat” phenomenon, energy transfer,  the Doppler effect, and more.   The kit contains one 880 Hz tube, one 880 Hz tuning fork, one 883 Hz tuning fork and rubber striking pad.  It comes with instructions for conducting experiments.