Primary spacing on large coil.

• To: tesla-at-pupman-dot-com
• Subject: Primary spacing on large coil.
• From: "Larry C. Gardner" <larrycg-at-intele-dot-net>
• Date: Sun, 28 Apr 1996 10:17:51 -0600

I am currently in the process of building a large Tesla coil.  
It will have an input of 50KV at 100mA.  The primary capacitance is 
12.5nF, and will resonate at 120kHz. The secondary has a diameter of 15 
inches.
	The problem here is how far apart do the primary winding need to 
be in a large coil?  In the smaller coils built I know that primary 
sapcing was recommended to be from 3/8 to 1/2 of and inch.

	Any help would be greatly appreciated.

Larry Gardner

"The present is theirs, the future, for which I really worked, is 
mine"-Nikola Tesla

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