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Re: Ratio of primary outer dia.



Original poster: "Jim Lux" <jimlux-at-earthlink-dot-net> 

I don't think I would make it larger in diameter than the secondary is
high... getting too big, the coupling would start to get low, although it
can serve as a counterpoise for the secondary topload.

The real design parameter would probably be the inside diameter (not too
close to the secondary, so you don't get flashovers, and the turn to turn
spacing.  Then, the primary OD is determined by however many turns it takes
to get the inductance you need.


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, December 07, 2003 3:40 PM
Subject: Ratio of primary outer dia.


 > Original poster: "John Richardson" <jprich-at-up-dot-net>
 >
 > Hello,
 >
 > Does someone have a rule of thumb for determining  primary outer diameter
 > based on secondary diameter and height?
 > I did an archives search, but came up with nothing definitive.  I am sure
 > that there is a ratio for optimum performance.  Also, if John Couture is
 > reading this, are you planning on publishing an updated version of your
 > construction guide?  Mine is from the early 90's, and I was curious if you
 > are planning to integrate some of the last decade's developments into a
new
 > book.  I certainly hope so.
 >
 > Thanks,
 > John Richardson
 >
 >