Re: The 1500t secondary myth

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Brett Miller" <brmtesla2@xxxxxxxxx>

Tom,

I think we've always known there was a good bit of
leeway, but a larger body of tests (some performed
with rigorous standards) have been performed by
coilers in the US and Europe, which support a
1000-1600T secondary.  See the pupman archives.  I
wouldn't be so quick to call the 1500T secondary a
myth without a larger body of evidence to back up your
claims.

Talk to you later.

-Brett


--- Tesla list <tesla@xxxxxxxxxx> wrote:

> Original poster: "Tom Luttrell PWRCOM"
> <tom@xxxxxxxxxxxxx>
>
> I finally got around to testing my latest TC set up.
> Due to a
> transportation accident that destroyed my old
> secondary coil I changed
> the configuration from 750t with an NST resonant
> primary cap to a 1200t
> secondary with an LTR primary cap. Both secondary
> coils have about a
> 4.5:1 aspect ratio.
>
> This has produced no noticeable change in the output
> spark length (still
> around 950mm for NST faceplate value of 880VA).
>
> There seems to be a large amount of leeway in the
> accepted wisdom of
> using a 1500 turn secondary.
>
> I do however feel a bit better about running my NST
> with an LTR cap, and
> also now having a flat pancake primary coil and
> adjustable height
> secondary has solved my over coupling racing spark
> problem.
>
> Tom.
>
>
>