Ok, I will post pic later this afternoon. I'm trying to mimic the function of a device that output electical impulse via transformer. One side is DC 5V and the other is AC inverted 5.8V square wave pulse. The end result is a pretty good zap of electricity. I understand that the counter electromotive force, ie collapsing field is what triggers voltage output, but I thought perhaps I need the DC component as the entire signal is outputted to electrodes to skin.