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Re: RQ Spark gap..variable?
Tesla List wrote:
>
> Original Poster: "sundog" <sundog-at-timeship-dot-net>
>
> Yup, it's me *again* :) I got a few questions about the RQ static
> sparkgap...
>
> The copper will probly' oxidise *very* fast for me, 'cause I'm only a few
> miles from a beach here (I've found this out using copper pipe for Jacob's
> ladders)...I know that hurts performance, and was wondering if there was
> anything I could do to the copper to make it stay 'clean' a bit longer
> without hurting it's arcing ability for the gap...I can't think of anything,
> but maybe someone else knows of something to use...
>
> **important!** I don't recommend trying to adjust this while it's
> running...just good healthy paranoia here
>
> The gaps are pretty much pre-set spacing in all of the ones I've seen, where
> the pipe sections are test-fitted, then epoxied in place and set exactly.
> My question...if you cut a slot lengthwise on the opposite end of the tube
> from the spark gaps (made it a big C), and attached an block of plastic, or
> what have you, on each side of the gap you just made, and a nylon screw to
> push one block away from the one on the other side, could you then spread
> the gap and increase the spark gap of the electrodes (via increasing the
> circumfrence of the whole tube)? I don't know if the gap-expansion would be
> uniform (I don't think it will in real life, the gaps closest to 180 out
> would probably open the most, but you never know.) I figure if I use 8-10
> electrodes in the gap, and have 2 sets of 8-10 for paralleling in 1 1" long
> tube (using 2"dia-at-3"length copper tubes), and 4 'adjustments' along the gap
> in the tube, you could keep your spark gaps parallel easier. sickly-ascii
> art to follow below....PVC seems like it will spread quite a bit without
> breaking in my initial tests. I haven't built this yet, but intend to just
> as a test-thing. Am I on to something, or just chasing my tail again? :)
>
> Hv in
> -------
> /0 \
> /0 \ <...Cut pipe here
> \0 /
> \0 /
> --------
>
> _____
> / 0 \
> / 0 \ T <-- Block /w screw in it
> | 0 | <-- screw
> \ 0 /[] <-- block screw pushes against (yup, really
> descriptive!
> \0 /
> ----------
> Turn the screw to spread the spark gaps out, and volia, adjustable RQ
> sparkgap ! Is this a new idea? (probly not, but hey, 'can't win 'em all!)
> Easy, simple, and stays crunchy in milk!
> **important!** I don't recommend trying to adjust it while it's
> running...just good healthy paranoia here
>
> Comments, criticism, etc on everything *but* the ascii art is more than
> welcome!
>
> Sundog - Randomly testing circuit breakers since 1977!
Hi Sundog....
there is another type of gap that is an RQ style but adjustable and
easiely cleaned...
check out the SD gap on Terry's web page under the misc. folder
http://www.peakpeak-dot-com/~terryf/tesla/misc/scot/
Scot D