Original poster: "Mark Broker" <mbroker@xxxxxxxxxxxxxxxx>
Length issues aside.... Marc Metlicka made a TC with 3000 secondary
turns. I have no clue what the Zo is for this Tc is, but, as I recall,
it vastly outperformed the "John Freau Efficiency Equation."
I also recall he was using a 33kV PT as a power source and that some
thought the unusually high primary voltage could have been a player in the
extraordinary performance. There are figures and measurements in the
pupman archives for this beast - he called it the 3k coil.
Interesting theory!
Mark Broker
Chief Engineer, The Geek Group
Hence I think there is fairly good evidence for my theory. If anyone knows
of any good coils with Zo greatly different from 36k, please let us know.