A simple voltage multiplier, 35.6Vac(7.x times) was the maximum I could register out of a voltage of 5Vac at 60Hz. It approaches the max(and goes forth) as close as the blue line on the oscilloscope graph gets in resonant frequency(I observed that it starts with some'bout 72.5Hz and goes always down till 60Hz, then gets stable and keeps, but voltage goes increasing at useless values) with the AC source, green line on the graph.
/*Sorry for my English, Port is my native language, English is just studies language*/
