Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>
Hi,
I got the secondary pretty coated now :-)
http://drsstc.com/~piranha/PIRANHA/PIRANHA-2/PIRANHA-total-01.JPG
http://drsstc.com/~piranha/PIRANHA/PIRANHA-2/PIRANHA-total-02.JPG
The EnviroTex stuff did a great job even though I did not "baby" it
at all ;-))
Remember the dragons:
http://drsstc.com/~piranha/PIRANHA/PIRANHA-2/Dragons.JPG
If there is no breakout point, they corona glow off their wings real cool!!
http://drsstc.com/~piranha/PIRANHA/PIRANHA-2/PIRANHA-DragonsGlowing.JPG
Best digital picture I could take...
I am not sure if the 8 inch balls are "too big" yet... I can pump a
full 300kV into them and they don't even try to break out... But
when they do, I am sure it will be "spectacular" +:D I sort of
think 6 inch balls might be a better choice for similar ~1kW
coils... I will start removing the shorting jumpers in the SISG
sections next to pump up the power far greater ;-)))
Cheers,
Terry
The PIRANHA coil is finally going ;-))
For primary tuning, I set up the signal generator to frequency
sweep from 100kHz to 110kHz.
http://drsstc.com/~piranha/PIRANHA/PIRANHA-2/Tuning.JPG
This gave me a nice graph to show the primary frequency:
http://drsstc.com/~piranha/PIRANHA/PIRANHA-2/tuning.gif
One "nice cable position" gave me 102.5kHz with is close enough :-)
http://drsstc.com/~piranha/PIRANHA/PIRANHA-2/PIRANHA-Const-012.JPG
I then bolted it all together to finish it up (still need to poly
coat the secondary coil):
http://drsstc.com/~piranha/PIRANHA/PIRANHA-2/Complete-1.JPG
http://drsstc.com/~piranha/PIRANHA/PIRANHA-2/Complete-2.JPG
Here it is doing 25 inch arcs at 1/2 power:
http://drsstc.com/~piranha/PIRANHA/PIRANHA-2/Firing.JPG
I can't run full power indoors. I loose about 10% in spark length
due to the hidden primary (lower coupling) but it wants to arc "too
far" already :-D
So it turned out real good!!
Cheers,
Terry