Posted by Paul Doug on September 9, 2009 at 10:13am
Piezo come in different sizes. The ones from Radio Shack are are what about 1" in dia. I just got some that are 3/4"dia. How does the different diameters affect the sound? Is bigger better?
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You may find that the frequency range is a little different according to size, but piezos have made a lot of advances in the last 15 years or so, and almost any cheap and cheerfull model will do the trick on a CBG.
Replies
I used 20mm size (about 3/4) from Digikey and they work great....