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Re: Arc Impedance Study - Computer Models
>Original Poster: "Sam Barros" <sambarros-at-hotmail-dot-com>
>
>>Date: Sat, 10 Oct 1998 21:35:12 -0600
>>To: tesla-at-pupman-dot-com
>>Subject: Re: Arc Impedance Study - Computer Models
>>From: Tesla List <tesla-at-pupman-dot-com>
>>
>>Original Poster: "D.C. Cox" <DR.RESONANCE-at-next-wave-dot-net>
>>
>>to: Terry
>>
>>Nice post with clean, clear data. Your 1" sec elevation is very close
>to
>>my usual recommendations of 1 to 1 1/2 inches above the plane of the
>pri
>>coil for bottom turn of sec coil. Any coiler running a 20 to 24 inch
>dia
>>coil will find 7 to 9 inch elevation of sec coil above the primary
>plane
>>works best.
>
>
> ???!!! I always thought that the primary's first turn had to be
>leveled with the secondary's first turn!
> I am quite sure I read it somewhere... Can someone shine a light into
>this matter???
There can be no 'special' value for primary height unless you just make
the same coil over and over. the correct relation between primary and
secondary windjng depending on size, inductances, and above all the
proper coupling of the coils. So the primary may start *above or below*
the secondary, it does not matter, if proper coupling is set.
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