**broken link removed**
I better understand it now. My purpouse was to put AC directly to the ignition coil. Not to use AC as the source and then a device to finally input square waves into the coil.
If I use pulsed AC it would work? When you disconnect the power source from the coil, as happens when using pulsed DC, the magnetic field of the coil collapses and it probarly would produce the same effect as the pulsed DC.
I've just tested right now to connect 12 VDC without pulsing it and it produces the same effect as when I connect AC. It creates an attracting magnetic field in the high voltage output. So I think pulsing AC could mimic the same effect as pulsing DC. Right?