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Re: first coil help
Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>
Hi Ryan,
Your tune point appears to be correct assuming your bottle caps are approx.
0.003uF. Are your bottles
connected in parallel? (they should be but had to ask).
If you stick with a sphere, you may want to increase the size using a
larger ball of sorts.
Are you experiencing anything that hasn't been brought up (such as corona -
specifically around the bottle
caps, flashes down secondary, breakout from top of winding (vs the tennis
ball), excessive heat in tank
components?
Take care,
Bart
Tesla list wrote:
> Original poster: "James Mathisrud by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <jrmathis-at-pressenter-dot-com>
>
> ok, well my coil is getting more powerful, but im still not getting
> breakout, here are my coil specs
>
> Tank circuit
> power 1- 15kv 30ma nst
> gap 1 gap 2 1.5in brass electrodes quenched with 30psi set at 3/8
> in wide
> cap 7 saltwater beer bottle caps filled with about 10 oz. ea
> s gap 3 1/4in carrage bolts
> chokes 2 2in pvc pipes wound with #28 wire about 7 in long ea.
> primary 16 turn helical primary 1/4 in dia. spaced 1/4 in ea. inner
turn 8 in
> at 45deg angle tapped at 12th turn
> secondary-4.5 in pvc pipe wound with #22 about 21.5 in.long roughly 800 turns
> discharge terminal- tennis ball covered in Al duct tape
> ground 2-4foot copper clad rods
> im also using a 600 watt dimmer to run the transformer
>
> so far im able to draw off about 2-3 in sparks, but im not getting any
> breakout. im starting to think that
> maybe i need more nst's because my system might be too big for the one i
> have also, i hope this isn't the
> problem, but maybe my primary it at too great of an angle. hope this helps
>
> thanks for everyones contributions, you have all been very helpful so far
> and i look forward to getting
> this thing working one of these days.
> Ryan