On Sun, 22 Jul 2012, somebody wrote:
On Sun, 22 Jul 2012 10:06:31 -0700 (PDT), wrote:
what is postive and negative on a round buzzer where contacs are an inside center circle and an outside ring ?
or does positive and negative matter with a piezo buzzer ?
No it doesn't matter. But it sounds like you just have a bare piezo
element, not the whole buzzer. What is driving it?
Huh?
If it's just the element, it probably doesn't matter. But if it's an
actual buzzer, of course polarity matters, since there's an active device
in there to make the sound, and it is polarity sensitive.
Michael VE2BVW