Just discovered something and would like to share it with the class. I was just playing with random things and happened to connect my 5W amplifier to an AC motor. As i said random. Nevertheless i discovered that not only speakers can reproduce sound. The AC motor seemed to produce a very low volume sound and tremble at low frequencies. Seems like the coils inside it make it a perfect resonator for these things. Seems to have an excellent frequency response from 1Hz to 20Khz. Just found it interesting.
