sorry, now i see the point, the chip don't generate the signal... the input coil read the vibrating string and generate an amplitude moderate signal that the chip amplify and send to the output coil, then the output coil move the strings?
sorry for the dumb silly question from a total n00b, if i give to the chip input a fraction of the battery power the thing will works without the string vibration at the beginning? or it will works adding a chip to generate the frequency instead of the input coil?
i wanna know if it's possibile to give to the string a adjustable vibration despite the string own vibration (or not vibrations at all) and with a way to cut the vibration with a simple button, it will be useful for my needs also a "standard" ebow with a sort of kill button to get staccatos
thanks again!