RE: Determine initial LTR cap size. was Best cap size for a sync gap

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

Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>

Hi Daniel,

Let me see if I can remember ;-))

Originally, LTR values were computed with long hard MicroSim simulations:

http://hot-streamer-dot-com/TeslaCoils/Misc/NSTStudy/NSTStudy.htm

The equations for MMC also were known:

http://hot-streamer-dot-com/TeslaCoils/MMCInfo/MMCPower4.html

These were combined into the program here:

http://hot-streamer-dot-com/TeslaCoils/programs/Mmccalc2.zip

A modern Excel version is here:

http://hot-streamer-dot-com/temp/MMCcalc2.xls

These two programs were used by Mark Broker to make the GeekGroup chart 
that everyone goes by now.

Eventually the equations were justified:

http://www.pupman-dot-com/listarchives/2002/April/msg00038.html

Cheers,

         Terry






At 05:44 PM 4/30/2004, you wrote:

>Apologies if my question has been posed previously. (It probably has been 
>several times in years past);
>
>How do you compute the LTR cap value for a given transformer with a static 
>gap? SRSG?
>
>I see that the Geek Group website has a table for a given range of NST 
>sizes but what I'm after is the formula(s) to determine the recommended 
>LTR cap value for a given transformer. I know how to determine the 
>resonate cap value for a given neon but how do I arrive at LTR?
>
>I realize that the very nature of this thread suggests that the optimum 
>LTR value might be up in the air...
>
>Daniel