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On Mon, 24 May 1999, Ron Ebert wrote:
We use an oscillator, amplifier and speaker driver. No pre-demo "cheating"
is necesssary. Our success rate is 100%. See
http://phyld.ucr.edu/Sound%20&%20Wave%20Motion%201/S-118G.htm for details.
Ron Ebert
Ron,
Thanks for the url. Will you give us a description of the chamber and the
purpose of the copper pipe including dimensions of the speaker and pipe
(I'm assuming the pipe is a conduit for the sound from the speaker)?