[sdiy] oscillating a plate

[Byron G. Jacquot]

>is a steal plate about 12Kg and i make a construktion like a guilotine, 
>the plate is fixed in one point (in the upper side).
>i don't tried to make it oscillate with the power of the sound but with 
>the resonant frequency, i tried to find the selfoscillating frequency of 
>the material....
>You give me different ideeas so i have now to experiment with it...

If you're trying to make a plate reverb, check out this article:
http://www.prosoundweb.com/recording/tapeop/plate/plate.php
It has some pointers about suspending the plate, and  how to attach a
transducer.

If you're looking for a more pure tone, you might find better luck with
lightweight strips or bars of metal.  I have trouble imagining how I'd
excite a 12Kg mass with just sound, at reasonable volumes.  Could you tap it
with a solenoid hammer?

Byron Jacquot