Re: [TCML] Caps

[mddeming@xxxxxxx]

Both 1.5 LTR & 1.5 STR will both work and both be safe. However, 1.5 LTR will be able to utilize more of the available energy in producing longer sparks.

Matt D


-----Original Message-----
From: Matthew N. Edwards <matthew.n.edwards@xxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Wed, Aug 29, 2012 2:41 pm
Subject: Re: [TCML] Caps


Christian,
I have listed a few sites/links below that I have found useful during my 
build. I could be more specific if I knew whether you were planning a 
static or rotary gap.
To my understanding you can go either +/- 1.5x resonant cap size. I 
would have to assume going LTR may affect the spark length but I am not 
100% sure.

http://deepfriedneon.com/tesla_start.html
http://www.richieburnett.co.uk/tesla.shtml
http://wiki.4hv.org/index.php/Spark_Gap_Tesla_Coil
http://www.4hv.org
http://www.classictesla.com/download/mmc_cap_chart.pdf
http://www.classictesla.com/java/javammc/javammc.html

On 8/28/2012 11:22 PM, Christian Hill wrote:
> Hello. I am building my first coil and have a few questions. I read that
> you should stay away from using a resonate sized capacitor as it can cause
> a "condition called resonate rise." Multiple sources say to use a "larger
> that resonate" capacitor to keep this from happening. I've read that you
> can also use a multiple of the LTR capacitance value as well. Let's say
> that the optimum LTR capacitance is 10nF. Since I can double it and use
> 20nF would I also be able to half it and use 5nF? (Assuming that my voltage
> needs were met, of course).
>
> I would assume that the closer I get to the resonate capacitance value, the
> better chances of resonate rise I have. So I should stay as close as
> possible to a multiple of the LTR capacitance, correct? Or should I just
> meet my voltage needs, tune the coil accordingly, and make use of safety
> gaps?
>
> I am asking all of these capacitor questions because I want to get the most
> out of my money. Those Cornell-Dubillier 942C20P15K-F's can really add up
> when you're on a budget. I tried searching through the archives and have
> poured over dozens of tesla coil guides but found nothing that really
> answered my questions. Thank you very much for your help.
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla

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