Re: Static Gap Spacing

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Clearspring1-at-aol-dot-com>

Ralph,

If you mounted your static gap tubes horizontally instead of vertically on 
longish machine screws, couldn't you just raise or lower every other tube to 
make a sort of single-mounting-plate version of the Scott D. gap?  I don't 
know that this is much of an improvement over your vertical mount system, but 
avoids the (necessarily precise) step of ovalizing the tubes.  Just a 
thought...

Regards,

Michael Tandy

> Another variation is a sandwiched stagger gap where the spacing is adjusted 
>  by varying the distance between the two layers of tubing. This is 
basically 
>  the Scott D gap. Probably my best static gap is made from 5 one-inch 
copper 
>  pipe couplings. These are mounted vertically on five 8-32 brass screws 
> around 
>  4 inches long, carefully lined up on a piece of G-10. Use hex nuts and 
> pieces 
>  of brass for shelves to hold the couplings around an inch above the G-10 
> slab.
>  I put the couplings in a vise to carefully "ovalize" them. Gap spacing is 
>  easily adjusted simply by rotating the couplings to bring them closer or 
>  farther apart.