Re: Racing arc clues...

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

Original poster: "Robin Copini by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rcopini-at-merlin-dot-net.au>

Hi John,

 Hard to say about line voltage, I run the coil inside my workplace which is a
colorbonded steel lined shed 50metre X 25 metres X 6 metres so no wind. I
believe
as you say that  the humidity/atmospheric pressure may be a factor. Don't
get me
wrong, it's not an everyday occurence, just something that I have noticed
happens
about every 7th-8th firing and requires some attention. My coil at full
power is
running at very high power levels so the bang size at 200bps is still quite
high. I
may just be at that point where the secondary just won't cope. What I
>should< be
doing is keeping better records of various variables when I fire it up so as to
perhaps detect a common thread that promotes the condition.

 I will keep you informed.

 Best Regards

 Robin Copini.


Tesla list wrote:

> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<FutureT-at-aol-dot-com>
>
> In a message dated 5/30/01 7:45:25 PM Eastern Daylight Time, tesla-at-pupman-dot-com
> writes:
>
> > I have found that I can run my unit at
> >  almost any power level on one day with perfect results, pack it up, set it
> > up
> >  again on another day in exactly the same place, same rf grounds, the power
> >  supply is still where I left it, and then get racings arcs up and down the
> >  secondary. I always wipe down the secondary, topload, and primary with a
> > cloth
> >  before running.
>
> Robin,
>
> I wonder if your line voltage could be varying enough from day to day
> to cause the problem?  I wonder if changes in atmospheric pressure
> or humidity might be causing the racing sparks?  If you're running it
> outdoors, maybe more wind (or less) promotes the racing sparks?
>
> Just tossing around some ideas.
>
> John Freau