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Re: Where to look?



Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

a 12/30 NTS puts out aprox 17000v pk. 15kv capacitor is less than Pk voltage
and no safety margin. Failier is predicted and expected.
  Robert  H

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Thu, 21 Mar 2002 18:21:53 -0700
> To: tesla-at-pupman-dot-com
> Subject: RE: Where to look?
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Thu, 21 Mar 2002 18:49:35 -0700
> 
> Original poster: "Vanderputten, Gary by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <gvp-at-pvaintl-dot-com>
> 
> Jim
> 
> I recently built a very similar coil - based all measurements on that spread
> sheet everyone uses, I mean exactly and the coil responded as predicted.
> 
> MY secondary 3 1/2 " by 900 turns of 22.
> 
> You have more cap than I  -15kv/ .01 Vs 30kv/.0066
> 
> My primary has 16 turns, yours about 12.
> 
> My tranny is a 12/30 or 12/60, hence the larger Kv on the cap
> 
> Sam RQ gap - 8 gap pipe with fan
> 
> Torroid - 6" copper float
> 
> I have a 'Fritz/Lau" LCR protection circuit for the tranny and my apartment,
> but this shouldn't affect performance.
> 
> Tuning - I use the entire primary and most of the gap (adjusting the latter
> just changes the streamer in length Vs form)
> 
> My coil runs cool and noisy with about 15" arcs to a good rf ground at 70vac
> on the variac- easy to get more once I leave the building.
> 
> 
> I think that you can goose yours up two ways  -
> 
> Try a 9/60 tranny - very significant change when I went from 12/30 to 12/60.
> Your cap's 15 KV is too low to take on a 12kv.
> 
> Increase the primary turns
> 
> Good luck.
> 
> Gary
> 
> 
> Original poster: "Gregory Hunter by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <ghunter31014-at-yahoo-dot-com>
> 
> Spark Gap! If you only improve one thing, improve
> that.
> 
> My $.02 worth,
> 
> Greg
> http://hot-streamer-dot-com/greg
> 
> --- Tesla list <tesla-at-pupman-dot-com> wrote:
>> Original poster: "by way of Terry Fritz
>> <twftesla-at-qwest-dot-net>" <jim-at-jlproduction-dot-com>
>> 
>> Hi all,
>> As I prepare to have at my coil this weekend I was
>> wondering where I
>> should focus my attention as to better
>> spark length?
>> I realize this is the 10,000 dollar question and
>> also that experiment is
>> king, but any hints are more than
>> welcome.
>> To give a pretty good idea of how I did on round one
>> I have used Paint
>> Shop Pro to enhance the contrast on
>> one of the better pics I took. This modified pic can
>> be seen here...
>> http://www.jlproduction-dot-com/sparkmod1.jpg
>> 
>> Or the whole site can be seen here...
>> http://www.jlproduction-dot-com/Tesla.html
>> 
>> 
>> The toroid is 14 inch diameter to give you a scale
>> to work with.
>> 
>> Thanks in advance for any and all ideas,
>> Jim
>> 
>> 
>> 
>> ---
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>> 
>> 
>> 
> 
> 
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