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Re: second light!
Hi Jan,
there are no limits on the power you can put into a coil - but at
some point the sec'll give up. For a laugh I'm planning to run a 4" by 14"
sec off my 12kVA system, just to see how long i can get the arc before it
dies.
Regards
Nick Field
> Hi,
>
> I finally got my transparency sheet cap fully assembeld and the
> optoelectronic mains switcher design improved and working flawlessly.
> *Phew*.
>
> Yesterday powered up the whole tabletop 1.8"x9" TC assembly for the first
> time after I had dumped those the awful beer bottle caps. That 8nF
> transp.sheet cap really works miracles - no corona, no RF losses. Maybe I
> was lucky with the sheet material, because the cap stays nice and cool,
> even during "constant" operation (>10 min). My best recommendations for
> this cap type!
>
> Now, the fantastic result is I get wonderful 7" purple-to-white
> streamers to air, and 13" hits to a grounded rod! Beats by far what I had
> hoped to achieve with this small TC! 8-)
>
> One question for further improvement:
> is there any power handling limit for increasing the tank cap size?
> I mean could the 1.8" diameter AWG#28 wound coil handle the energy dump
> from a larger, say 20nF at same voltage, cap? Is there a formula for
> maximum energy in relation to coil diameter?
> Also, I'd guess a lower resonant frequency would be better(?) for future
> designs, because less cycles can pass until the spark gap is quenched?
>
> many thanks,
> Jan
>
> --
> *************************************************
> Jan Florian Wagner
> jwagner-at-cc.hut.fi, petwag-at-kolumbus.fi
> http://www.dsh.edu.hel.fi
>
>
>
>