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Re: 1/4 wave TC (fwd)
---------- Forwarded message ----------
Date: Thu, 26 Jul 2007 19:59:27 -0700
From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: 1/4 wave TC (fwd)
I agree 1000 percent! But I think it's good for coilers to try things
out. Once a coiler builds a coil to experiment down a certain avenue, I
prefer coilers continue down that path without intervention because
experience is absolutely the best teacher. This is a personal preference
of course and isn't held by all. I think your questions are absolutely
valid. However, Skip may just be trying out something new and is
wondering what will come of it. Experience will tell the tale (of that I
have complete faith).
Tesla list wrote:
>---------- Forwarded message ----------
>Date: Thu, 26 Jul 2007 15:55:09 EDT
>Subject: Re: 1/4 wave TC (fwd)
>In a message dated 7/26/07 1:28:27 P.M. Eastern Daylight Time,
>. Unpowered, the
>resonant frequency of the secondary with no top load is about the same
>as the 1/4 wave frequency of the wire length in the secondary.
>My intention with this coil was to build a secondary that would resonate
>at the at the 1/4 wave frequency of the wire length used in the
>secondary. Indeed, with no top load, the overall excited resonant
>frequency of the secondary is only slightly below the non powered
>Have you considered the following:
>1) You have made a coil whose resonant frequency has a quarter wavelength
>that is equal to the straight wire quarter wavelength, but as soon as you put
>the first bend in the wire, the "EM distance" between the two ends is no longer
> that of the straight wire. Once you have put ~380 bends in it such that the
>straight-line distance in three dimensions from end to end is only ~19
>inches, then that quarter wave number really seems to lose any significance.
>2) As the streamers form, they drop the resonant frequency of the secondary.
>The streamers themselves become a constantly growing and shrinking topload,
>as they form, grow, disappear, and new ones re-grow. When there is no other
>topload, the percentage by which the streamers affect the frequency is
>greater. Since, when anything is happening, the frequency is constantly changing,
>what is the relevance of the wavelength at which nothing is happening?
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