Re: RQ gap (was:Re: Coil on ebay this week only!!!)

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

Original poster: "brian by way of Terry Fritz <twftesla-at-uswest-dot-net>" <ka1bbg1-at-mcttelecom-dot-com>

hi, I built an "rq" gap and it took a long time to get spacing just right.
mine is still a bit less than perfect but i stuffed a pill bottle neck
towards the fan to keep the air on the gap. it works ok as is. cul brian

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, February 27, 2001 9:17 AM
Subject: RQ gap (was:Re: Coil on ebay this week only!!!)


> Original poster: "Mike Novak by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<acmnovak-at-msn-dot-com>
>
> He he he...
> Glad you've "seen the light" Garry. After about 30 minutes of intermitted
> operation, the tubes are "warm" to the touch. I could've mounted them on
> acrylic with no problems. However this type of gap was kind of a pain in
the
> a** to build. You must do a perfect job on a drill press in order for
> everything to look right.
> The tubes are actually 8" long and 1" in diameter. They were fabricated
from
> 1" "hard" copper drainpipe. I got a 12 foot length of it at ACE for $8 as
I
> recall.
> The gap gives excellent results, actually 20" from 460 VA. It's not
exactly
> JF efficiency, but it works well enough for most people.
> Adding a cooling fan is not neccesarily to cool the pipes. It is mainly to
> provide airflow across the gap. A slight performance increase can be noted
> by introducing a small airflow across the gap on that coil. An extra inch
or
> two may result.
>
> IMHO, it is easier to build SRSGs than RQ gaps, but that's mainly because
I
> have access to a good machine shop at school.
>
> Safe coiling!!!
>
> -Mike Novak
>
>
>
> > Original poster: "Garry Freemyer by way of Terry Fritz
> <twftesla-at-uswest-dot-net>" <garry-at-ndfc-dot-com>
> >
> > Ye know it's funny how I can miss the obvious till I actually see an
> > example.
> >
> > In your item on ebay, you show a Richard Quick style spark gap with
pipes
> > that look to be about six inches long. It never even occurred to me that
> > with such long pipes, you probably wouldn't need to put it into a pipe
and
> > run a cooling fan on it.
> >
> > I think I like the looks of your gap and will give that a try myself.
How
> > well does that gap seem to do ye? I've tried to make a gap like that in
a
> > pipe but I didn't have near the dexterity required to get the spacing
> right.
> > Even using a gap tool, I just coulnd't get it right. Tightening it would
> > just make the pipe roll over and end up being too wide on one side and
> touch
> > the next pipe on the other side.
>
>
>
>
>
>