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

[Terry Fritz <twftesla-at-uswest-dot-net>]

Hi Garry,

        I have tried this but the arc cuts the disk up.  The arc is about the
equivalent of an arc welder flame and it slices right through most materials. 
An Al2O3 (alumina) disk my survive but I never tried that.

Cheers,

        Terry


At 12:45 AM 8/19/00 -0700, you wrote: 
>
> 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.