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Re: How bout this for a gap? A disk interrupted gap.



The rotating slotted insulator has been tried for a radar modulator.  The
big problem is erosion of the insulator.  Trying to chop off a spark is a
pretty tough challenge, because once struck, a spark can stretch a fairly
long way, particularly along a surface.

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> From: Tesla list <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: How bout this for a gap? A disk interrupted gap.
> Date: Saturday, August 19, 2000 6:35 AM
> 
> Original poster: "Garry F." <garryfre-at-pacbell-dot-net> 
> 
> I was reading the book from Brent Turner and as I was reading about the
triode,
> I had an idea. I don't think this idea is unique tho, I doubt that I am
the
> first to think about it.
>  
> Picture a gap, that had a non-conducting rotating disk with slots in
between
> the gap where the slots serve to allow a path for sparking and the spaces
> between the slots serve to cut quench the gap where the slots arrive over
the
> electrodes just at the right time and the space quench the gap at the
right
> time.
>  
> This might be accomplished by adjusting the speed of the disk OR prescise
> placement of the slots. Experimental disks could be cut from cardboard
and
> slots cut into the disks and a LED with a reciever could be used to test
the
> timing of the disk. Once the proper position of the slots is determined,
the
> actual disk could be cut accordingly.
>  
> I think it's an interesting idea, but I imagine it would be pretty tricky
to
> get the timing such that voltage would not soar too high before a slot
arrived
> at the gap.
>  
> Perhaps a safety gap would be indicated.
>  
> I don't have the knowledge or resources to build, or test such a thing
yet but
> maybe someone out there has already tried it or might want to try it.
>  
> It certainly would have the advantage of not having contacts that could
fly off
> the disk at high speed as in a regular rotory gap.
> 
> 
>