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Re: Big Time Coil Problems...
No, it won't work. First you shouldn't push your transformer especially if
a neon type, and second if you are running the NST at 18 kV Erms then the
peaks are at least 25 kV on the caps --- probably closer to 28-30 kV with
resonance --- so you are frying your caps if you haven't already done
permanent damage. You really don't need more than 12 kV Erms with most
small to mid systems -- it's current you want not extra voltage.
Regards,
Dr. Resonance
-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Tuesday, February 15, 2000 10:39 PM
Subject: Re: Big Time Coil Problems...
Original Poster: "Malcolm Watts" <malcolm.watts-at-wnp.ac.nz>
Hi Ryan,
> Original Poster: "Ryan Ries" <spud-at-wf-dot-net>
>
> Man, I'm really mad now. Our coil is not working at all (again?!). Our
> power source is 150v going into 15Kv/90ma transformer to make 18Kv. We
are
> using a 6" secondary wound with 22 gauge wire. (Albeit short winding, it
> should at least be doing something!) Our caps are mica transmitting
caps
> in series to make .00325µf at 20Kv. I believe this is where we are going
> wrong. We can get no output at all from the coil no matter what. Do we
> just need a better capacitor system to fix the whole thing? I know the
> capacitance is really low, but I was hoping it would at least do
something.
> It seems like after that last secondary blew up, everything just went to
> heck... Ugh, I hope this gets better soon...
> Thanks,
> Ryan
You need a whole lot more capacitance - 10x as much would be
good. Have you calculated what your primary energy (Ec) is with
about 3nF charged to 18kV? Don't forget to adjust your primary
turns to maintain tune.
Regards,
Malcolm