So there is no tank circuit, at least not at 60Hz. Also the wire in the
secondary is probably so small that it would not sustain 2 amps of
current at any frequency. The resistance of the secondary is such that
the short circuit current maxes out at about 60 mA. I hung a Tek scope
across the low voltage end of the high voltage probe, and it showed only
60Hz. That scope would show anything below about 1 GHz.
After evaluating all of this, my conclusion is that this experiment was
originally published in good faith by someone who had misinterpreted the
measurements. I know I was certainly surprised at the original AC
current meter reading. And even more surprised that the meter was
really indicating AC kilovolts, rather than AC amperes. But after
examining the way the meter was constructed, and all of the various
other factors described, it all makes sense, at least to me.
The bottom line seems to be that there is no overunity power here, not
even ordinary tank circuit reactive power present. Only a meter labeled
"AC current" that should be relabled "AC kilovolts" for this particular
application.
Charles