Drinking Cup Speaker

# 5H40.45

Description Two Neodymium magnets are placed in and out the bottom of a cup, which sits on a mounted coil (37E). When it connects to Function Generator the sound will come out from the cup (face it to audience). The FG can either drive by internal signals or by an external audio device (iPod, cassette, etc.).
Location 37E (coil) and a big cup