Triggered wave generator/piezo questions

[Prospective Volition]

Just how sensitive are piezos. Can they break in ways other than physically. 
I.e a visual crack or break? Or do they breakdown internally with a large 
input voltage?

Vol




>>A very crude way of testing it is to put a NO momentary swich between +5V
>>and the trigger input. Hit the switch quickly and you should get a DONK.
>
>I ran into a problem with this on my Snare+. Apparently, the coupling
>capacitor stays charged and you can't retrigger the circuit. I
>finally tacked a 100K resistor from -15 to the input side of the
>capacitor. Overkill, but it works for testing purposes now. Had me
>going for a while. I thought the capacitor was bad.
>
>Terry Bowman, KA4HJH
>"The Mac Doctor"
>
>ICQ: 45652354
>

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