Re: srsg setup probs

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

Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>

Colin,

You touched on something rarely talked about. Just like the main spark
gap, when a safety gap fires, there
are ions floating around between electrodes which naturally lowers the
arc voltage of the safety gap to
some degree. This might be problematic if the safety gap is set slightly
above the spark gap voltage, and
may naturally cause us to widen the safety gap wider than we should.
FWIW, I position my safety gap in
line with my srsg so the natural air currents help clear out ions at the
safety gap. Might as well take
advantage of circulating air currents when you can to maintain some
consistency.

Take care,
Bart

Tesla list wrote:

> Original poster: "colin.heath4 by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <colin.heath4-at-ntlworld-dot-com>
>
> hi bart
>             thanks for your comments i think i have a prob using stainless
> for the safety gap it seems once stainless has fired a few times it forms a
> path through it with less resistance
> cheers
> colin
>
> ----- Original Message -----
> From: Tesla list <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Sunday, May 12, 2002 9:56 PM
> Subject: Re: srsg setup probs
>
> > Original poster: "Barton B. Anderson by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>
> >
> > Hi Colin,
> >
> > I would check the srsg phasing. You may now be 180 out. I assume you run a
> > narrow gap for the srsg? I run
> > as narrow as possible (about 2.5mm between stationary and rotating) to
> > allow the timing to be in control
> > as much as possible (have to make sure there's no wobble in the disc). I
> > also only use 2 stationary
> > electrodes to keep the total gap spacing down to about 5mm for the same
> > reason. However, I suspect phasing
> > is out and cap voltage peaks between alignment. I use 1" solid brass
> > spheres for the safety gap (to get
> > the highest arc voltage for the least gap width) and I put the safety gap
> > across the rotary.
> >
> > Take care,
> > Bart
> >
> > Tesla list wrote:
> >
> > > Original poster: "colin.heath4 by way of Terry Fritz
> > <twftesla-at-qwest-dot-net>" <colin.heath4-at-ntlworld-dot-com>
> > >
> > > hi all
> > >         i am currently running my srsg at 400bps (im from uk)
> > > and i wanted to run at 200bps as the cap needs this to charge nearly
> fully
> > > i removed every other electrode and tried to setup but the safety gap
> kept
> > > firing i got it so if i flicked on and off a few times the power supply
> > that is
> > > it would run then with a massise improvement in performance i think up
> to 6'
> > >
> > > my question is could this 200bps be causing inductive kick or some other
> > effect
> > > creating the need to very slightly open my safety gaps?
> > > also my safety gaps are rounded electrodes made from stainless steel
> > > any help would be much appreciated
> > > many thanks
> > > colin heath
> > >
> <http://www.geocities-dot-com/colinheath2002/>www.geocities-dot-com/colinheath2002/
> > >
> >
> >
> >