Wayne Parham Messages: 18894 Registered: January 2001
Illuminati (33rd Degree)
I've not really studied them but as a mental exercise, I see no way that something using charged plates to move a diaphragm would have any mechanism to make them act as a generator. However, a piezoelectric driver could generate back-EMF, essentially acting like a crystal microphone.
I suppose the best verification test would be to hook one up and see if you could generate a signal by moving the diaphram.
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