Hey mate,
Check your quenching and timing. This can have a huge effect on
performance.
-Wil
On 26/02/2015 8:04 PM, "Kuba Anglin" <kubaanglin@xxxxxxxxx> wrote:
> Hello,
> I recently finished building my second Tesla coil.
> Here are the specs:
>
>
> - 2 parallel 12KV 60mA neon sign transformers 12KV 120MA
> - 2000V .15uf capacitors. 6 strings of 13 (78 total). 69nf.
> - Rotary spark gap 1780rpm with 3 tungsten electrodes.
> - Resonant frequency: around 110KHz
> - 1/4" primary coil (tubing) 10 turns, 7.5 turns for optimal spark.
> - 24 AWG secondary. 6" form (6.625"). 1240 turns. 30" wind height.
> - 24"x6" Spun Al toroid
>
> After firing up the coil, I was disappointed to see only 1-2' sparks. My
> previous 4" coil that uses only one transformer could output about 3'
> sparks. The primary is properly tuned and the spark gap fires about 80
> times per second as it should. I double-checked the wiring and it looks
> great. I must be missing something, but I cannot figure it out. I 3D
> printed the primary standoffs to perfectly hold the primary coil. The
> secondary coil is perfectly wound and glazed. The transformers are fully
> functional. The whole coil should operate at around 1800 watts (including
> the motor). Here are some links to pictures of the coil: Tesla coil
> <http://s11.postimg.org/50b6jpg6r/Large_Tesla_coil.jpg>, Spark Gap
> <http://s1.postimg.org/xfowkeppr/Spark_gap.jpg>. Here is a video of the
> first run: Test <https://www.youtube.com/watch?v=n5gSaWPfZH4>.
>
> Any feedback would be greatly appreciated.
>
> Thanks,
> Kuba Anglin
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> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
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