Can the Larsen effect ( https://en.wikipedia.org/wiki/Audio_feedback ) help explain how overunity resonance devices function ?
For those of us who still don't understand how these overunity resonance devices function .
Also, it seems that if you just directly connected an electret-?-microphone to a speaker, without any type of external power input, that it could never become overunity because the micophone and speaker are very inefficient, so the losses would prevent overunity.
- But what about if you put a very loud constant sound to the microphone, to get enough power travelling through the loop to overcome the inefficiency / losses, although I still doubt that would work .