Re: [TCML] Tesla Coil Toroid for 230 watts

[Futuret <futuret@xxxxxxx>]

I forgot to mention... max spark length was 13".

In another experiment I used a larger capacitor and
a 120 bps rotary sync gap.  I got 25" sparks but
sparks were flashing over the OBIT insulators as a result
of resonant voltage rise.  The cap value was too near
the resonant value.  The OBIT failed after about 10 seconds
with this setup.  I forget what toroid size I used in this
arrangement.  

Cheers,
John

 

 


 

 

-----Original Message-----
From: Futuret <futuret@xxxxxxx>
To: tesla <tesla@xxxxxxxxxx>
Sent: Wed, Jun 22, 2011 2:09 pm
Subject: Re: [TCML] Tesla Coil Toroid for 230 watts


 I used a small value tank cap of 0.0015uF, and a 4 section
multi-static gap for my 10kV, 23ma OBIT coil.  The small
value cap resulted in a high break rate, and coalesced
tendril-like sparks.  Using a 1.5" x 4.5" toroid produced
a single spark streamer.  The secondary was 3" x 11.5"
wound with 28awg magnet wire.  

Cheers,
John

 



 
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