The kapanadze is 600++ pages long, is there a good place to start with a concensus of information available?
 
I've seen many different people say the coil is wound all sorts of ways, but I can't find the ones that I thought were most correct.
 
Also, As applied to this joule ringer stuff I've seen, what's the variation to change to the kapagen coil instead of the bi or tri-filar coil... and I know there's something important about putting the ground wire back trough the coil, which is going to provide a capacitive pump on that side as the induction is happening in the other coils.
 
I've been playing with coils, and have a couple that are wound in concentric layers, and unattached, as they were intended to be a capacitor, so I wound the open coils but next to each other to see the capacitance, then I wound a cadaceus coil similarly - but I think I ended up with much more wire on that one, and ended up putting it onto a ferrrous tube, so I have all sorts of bifilar variations to try... and what there was that new article at PESN, about the oscillator to try tesla effects, which is also generating spactial fields around the batteries, and I wound the 4.7uH and 22uH coils ... which also makes it look like these joule theif circuits minus the transformer, but I have this ignition coil here...
 
 

My five cents worth
Resonance yes but not parametric its stochastic that's how he manages to get the output to run at 50/60 Hz
Many years of thinking about this coil and how it works.
Just a thought to ponder
Chris