Originally posted by wonju
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Just look at it graphically. It has the same shape as the current traces above, all of them have high and low peaks at the same time! The last one is a current trace as well, not voltage! At the minimum peak a small amount of current still flows through a coil as per schematic!
I am proposing this type of DC-offset sinusoidal wave form as it is my belief that maybe Clemente was trying to do just that!: linear or maybe even sinusoidal current rising/falling through the coils but he only had those simple inductive resistors at hand at the time of building. We do not know the operating frequency and input coil's and resistive element's inductances to predict the waveform on the output. It might have been close to sine wave AC...
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