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1/4 Wave Theories - do a test?
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From: Greg Leyh [SMTP:lod-at-pacbell-dot-net]
Sent: Wednesday, June 03, 1998 2:39 PM
To: Tesla List
Subject: Re: 1/4 Wave Theories - do a test?
Mad Coiler wrote:
> Measure the maximum spark length produced by your 1/4 wave
> Tesla Coil. Then put a larger toroid on it that brings the frequency
> below that of when it was equal to the 1/4 wavelength. See if spark
> length increases.
> I have tried this. I have a small 3.5" diameter secondary
> that has 500' of wire in it. Running it at around 400kHz (1/4 wave
> equals 616') it has almost double the spark length and several times the
> power as when I run at the 1/4 wave frequency. And yes, the coil was
> fully retuned for all experiments.
Many experimenters have noted this in the past, confirming that
there is very little empirical correlation between a coil's
'1/4 waveness' and its performance.
--
-GL
www.lod-dot-org