Re: Iron transformer positioning under the primary experiment

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Ed Phillips <evp@xxxxxxxxxxx>

Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>

Hi Again,

I put a piece of copper under the primary like this:

http://drsstc.com/~sisg/files/SISG-coil/PrimaryQ-10.jpg

http://drsstc.com/~sisg/files/SISG-coil/PrimaryQ-11.jpg

It hardly made any difference!!!  The magnetic fields around the 
primary must stay very close the the coil!!  I don't know if there 
are any magnetic field mapping programs out there that could show this?

But it appears you can put metal objects really near the primary!!

Cheers,

       Terry"

   Your copper sheets will have high conductivity and low loss even 
though they are coupling to the primary enough to reduce the 
inductance.  I would think they would also provide eddy-current 
shielding of a transformer immediately below.

Ed