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RE: Dramatic Performance Drop After 5 Seconds?
Hi John & Coilers,
Discovered something last night that might be causing
my problem. Let me know what you think or if my fix is going
to maybe work.
> -----Original Message-----
> From: Tesla List [mailto:tesla-at-pupman-dot-com]
> Sent: Tuesday, March 14, 2000 7:19 PM
> To: tesla-at-pupman-dot-com
> Subject: Re: Dramatic Performance Drop After 5 Seconds?
>
>
> Original Poster: FutureT-at-aol-dot-com
>
> In a message dated 3/14/00 7:37:36 AM Pacific Standard Time,
> tesla-at-pupman-dot-com
> writes:
>
> > Greets All,
> >
> > My coil when at 3/4 to full power will run really nice for
> > 1-5 seconds and all the sudden the 12" - 14" streamers turn
> > into little 1/2" streamers, and the sound changes to a real
> > tinny sound. If I wait a few minutes and turn back on, it
> > repeats.
>
> Hi Bill,
>
> Often when this happens, it's because the gaps are overheating. I
> forget if you said you have a fan blowing on the gaps? If not, a fan
> may make a tremendous difference. When the gaps get too hot, they
> fire at a much lower voltage.
> >
> > I cleaned and checked to spark gap really well and the same
> > thing still happens.
> >
> > Is it possible my MMCs are shorting partially and then coming
> > back to life after being powered down for a few minutes?
>
> I doubt the MMC's are shorting like that.
> >
> > It happens very quickly it does not slowly degrade over time
> >
> > Many Thanks,
> > Bill Parn
> >
> > PS: I have got some 14" streamers to air with only
> > a 9kv-at-30ma NST. Does anybody know what the record
> > is for this little NST?
> >
>
> I think I got 27" or more from a 9/30 NST, but I'd have to check my notes
> for the exact figure. Theoretically it should be capable of 36"
> or so, with
> a sync gap at 120 bps, with a suitable cap size.
Holy Cow !!! Anybody have a sync gap for sale?
>
> Regards,
> John Freau
I don't have any air blowing across the gap at this point.
I want to try this out, also has anybody tried running their
air blown gap right out a window or garage door. I think
that might be a really good idea for those of you who run
their TCs inside.
To the point, I remember last night that my secondary has
the mag wire tied off inside the PVC tube. I know this is
bad however that is what the Popular Science plans called to
do and it was fine for the power level of a car coil. Now
my coil has only 16.5" of wire and since I was seeing 14"
streamers that did appear to occasionally dance a little
higher. So I am guessing maybe it was arcing inside the tube.
I took a look and there is a little scratch inside the tube
in the shape of a lightning bolt. :-0
Do you think this would cause what I saw and heard to happen?
I am hoping that I am going to be able to tape a bunch of
Polyethylene inside tube to discourage it from happening again.
If the damage is not to bad will this work?
Many Thanks,
Bill Parn