Re: Displacement Current Revisited

  Ed -

  How was the DC bias detected or measured? Was it positive or negative off
the secondary terminal?

  John Couture


At 07:14 PM 3/28/99 -0700, you wrote:
>Original Poster: Ed Phillips <evp-at-pacbell-dot-net> 
>"John, Ed and list,
>Where is the citation that Tesla made the above quote?  I would like to
>the quote and read it in the context in which it is written.
>Ed, I think it's been well established that a disruptive TC not only has 
>RF EM current, but also has an independant DC bias and polarity. 
>Hull has powered small electrostatic motors from this DC (ES)
>from his coils.  As I understand it, these motors will only run with ES 
>power and not with EM.
>I think the analogy of a firing disruptive TC to a conventional
>is not totally correct in establishing absence of a net DC current
>in a TC secondary.  The two are very far apart especially in their
>inductance and coupling.
>        The "DC bias" observed by just about everyone who has "played with"
>TC's appears to be due to rectification due to nonlinear conduction in
>the discharge, and not due to significant DC currents flowing in the
>coil, or associated directly with the normal excitation.  Minute average
>currents, certainly not enough to generate a significant DC magnetic