Hi once again I don't really understand multisim simulated results as i find them kinda not 1:1 with reality, I am not sure maybe someone here can help. In this schematic a switch the switches one one at a time. For the first time when each of the switches is switched on each of the caps charge.While they charge a current runs through them which also runs through the primary winding. When I continue switching the caps still maintain some if not most of their charge , so how come the oscilloscope show a clear square wave when switching as each next time because the capacitor is already atleast half charged the current rush towards it is far less than if it were empty so the flux in the transformer should change too and the reading on the oscilloscope too. Well check it out for yourselves. I zipped the ms. file because somebody has made it impossible to attach a multisim file directly.Kinda stupid.