Re the nominal 600 volt gradient, I infer that
it is a very high impedance source. Do you have an
idea as to how that 600 volt number is evaluated?

When making my measurements relative to the 60 Hz
electric field I have taken all of the precautions
that I can think of. My ground lead is faraday
screened.
I have enough sensitivity so that I am bumping into
the kTB thermal limit. Yet when I kill the electric
field by throwing the main breaker, I can see no other
evidence of a current. True, static electricity is a
wild card, but that is usually friction generated and
thus recognized and can be suppressed.

Of course I favor BG's godzilla. What we are doing
there is very real and can be easily measured.
However, his
latest effort at using a lower level over a longer
period
made me think of the 60 Hz electric field which is at
a lower level over a longer period. But it is at 60
Hz
rather than DC. And it is present along with godzilla.

On the other waveforms, my knowledge is limited to the
conventional electro-magnetic fields as can be
detected
by antennas and generated and/or amplified by our
standard stuff and seen by oscilloscopes or spectrum
analysers etc. In short, routine stuff.

Thanks V for your interest . . . and I'll sure keep
you
in mind if I want any special LED stuff.




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