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Re: [TCML] Re VTTC primary question

It even should be possible to increase the primary turns so far, that you can go completely without a separate primary C. I have built a HF VTTC some years ago (Hartley Oscillator) which made a 100inch plasma flame, there was no capacitor, only the inductance of the coil + some picofarads self capacitance of coil, wires and the tube itself. 
Maybe this could even work for the classic VTTC design.

https://www.youtube.com/watch?v=nhZ4H5um0vg

Regards,
Stefan
----- Original Message ----- From: "Steve Ward" <steve.ward@xxxxxxxxx> 
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Tuesday, February 17, 2015 1:59 AM
Subject: Re: [TCML] Re VTTC primary question



I would go with the smaller primary cap and more primary turns.  3.4nF
already sounds like a large C in my experience anyway, maybe you can go
smaller still?

Steve
On Thu, Feb 12, 2015 at 9:36 AM, andrea ferrari <ferro1388@xxxxxxxxx> wrote: 


Hi Matt D, Hi list!
Thanks for this kindly reply,,,,,

Ok it's quite clear ;)
I would like make a VTTC with RK715 (with an half-wave MOT doubler ), so my coil res is about 350 kHz (with a small topload and measured with simulated 
streamers)
and I am thinking to try two different configurations:
- primary cap 6.8 nF (12 kV) with something like 10 turns ( with few extra 
turns to adjust)
- primary cap 3.4 nF (24 kV) with more than 10 turns on primary winding (I 
suppose 15+)
In your opinion what may be the "best" choice???
Thanks
Andrea
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