Re: Please help me with my coil

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <twftesla-at-uswest-dot-net>

Hi Tom,

Yes, 50nF is correct.  Something else must be wrong.  Maybe the spark gap
is too close causing a low firing voltage.  You might try running the
transformers with just the gap alone connected.  The gap should be set to
just fire.  Then you know it is firing just at the 14kV peak of the 10kV
RMS voltage and no less.  Others have ideas too on this...

Cheers,

	Terry



At 08:40 PM 2/6/2001 -0800, you wrote:
>I am using a bank of 6 OBIT's 10kv -at- 133ma.
>Thanks
>--tom
>
>
>--- Terry Fritz <twftesla-at-uswest-dot-net> wrote:
>> Hi Tom,
>> 
>> What NST are you using?  50nF sounds like too much
>> for a static gap 1.3kW
>> coil.  The firing voltage may be too low.
>> 
>> Cheers,
>> 
>> 	Terry
>> 
>> 
>> At 01:35 PM 2/6/2001 -0800, you wrote:
>> >Here are my coil specs.  
>> >
>> >I recently built a 50nf 20kvdc mmc cap for my coil.
>> 
>> >after adding a decent topload and retuning i get
>> the
>> >same spark length as with my 12nf
>> saltwater/winebottle
>> >cap.  What gives? With 1.33kw i think i should be
>> >getting more that 24in discharges dont you?  I
>> think
>> >the problem may be with my spark gap.  Its a static
>> >gap made of a few pieces of copper pipe lined up
>> like
>> >this |||||  I think i might make a rotary gap i saw
>> in
>> >poptronics.  It was made by attaching metal strips
>> to
>> >a muffin fan, and putting it between 2 electrodes 
>> >              0
>> >    ---0 0-fanblades-0 0---
>> >              0
>> >not to scale obviously
>> >But u get the idea rite?
>> >
>> >Thanks for any help.
>> >--Tom
>> >
>> >__________________________________________________
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>> 
>
>
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