Re: Magnetic quenching.

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Finn Hammer <f-h-at-c.dk> 

Want a big magnet?

http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=3801104728&category=1267

You can always rely on E-Bay.


But seriously:

Now that we know that the negative incremental resistance caracteristic of 
the arc channel is due to the fact, that the channel just gets fatter to 
accomodate higher currents (which replaces "magic" with straightforward, I 
think) perhaps it is time to nail down what to expect from applying a 
magnetic field across the arc.

One would expect that it would merely bend into a curve, making it longer, 
which hardly seems desirable.

Cheers, Finn Hammer

Tesla list wrote:
>Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>
>Hi,
>I would like to plug the local magnet place here :-)))  But no relation...
>http://www.wondermagnet-dot-com/
>http://www.wondermagnets-dot-com/cgi-bin/edatcat/WMSstore.pl?user_action=list&category=Magnets_and_Magnetism%3BPermanent_Magnets%3BNeodymium 
>
>Arrrg!!!  The "big boy" 1+ Tesla one is out of stock....
>http://www.wondermagnets-dot-com/cgi-bin/edatcat/WMSstore.pl?user_action=detail&catalogno=0072 
>
>Just get a dozen of these :o)))
>http://www.wondermagnets-dot-com/cgi-bin/edatcat/WMSstore.pl?user_action=detail&catalogno=0076 
>
>
>They are real cool and three blocks away so if the screw you, I will go 
>kick on them :o)))
>Cheers,
>         Terry
>
>
>At 09:43 PM 3/9/2004, you wrote:
>
>>Hi Weazle,
>>
>>I'm sure your idea for the flux return will improve the magnetic quenching.
>>That's how Tesla built his.  I haven't tried that yet.  But I have been
>>using magnetic quenched gaps for the past couple years with satisfactory
>>results.
>>
>>My latest version will involve 3/4" tungsten carbide balls for the
>>adjustable spark gap terminals and a stack of strong rare earth magnets to
>>aid in the quenching.  I'm working on an educated hunch that the geometry of
>>the spark gap terminal needs to be spherical in order to maximize
>>performance.
>>
>>Dave
>