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RE: Magnetic quenching.



Original poster: "David Thomson" <dave-at-volantis-dot-org> 

Hi Marco,

 > Have you got any evidence that magnetic quenching rises the gap
 > threshold voltage? If yes, can you quantify it?

No, I don't.  As I noted in my earlier post in this thread, I presented a
theoretical dimensional analysis of the magnetic quenching.  I have a pretty
nice test bench now, but I don't know how I can measure the electrostatic
potential of the gap terminals and magnetic flux of a running system.  If
there are engineers here who have some ideas, I would be willing to
entertain them.

 > Can you post more information about your magnetic gap arragement?

http://www.tesla-coil-builder-dot-com/images/sparkgapmagnetic01.jpg
You can see the magnetic spark gap I have been using up until now at the
above link.  There are three more magnets under the wood block.  The rods
are thoriated tungsten ground flat at the gap.  There is a noticeable change
in coil operation (intensity of spark, louder operating) when the magnets
are used as opposed to when they are not used.

As I mentioned in a previous post, I attribute most of the cool running of
the coil due to the secondary construction technique (Tesla also used it for
some coils after 1905.)  The magnetic gap itself is a loose modernization of
Tesla's magnetic spark gap.

Dave