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RE: [TCML] 1/4 wavelength theory ??



 This is puzzling. Isn't the 1/4 wavelength the earliest antinode,
thereby representing the point in the resonator where the amplitude of
the standing wave is a maximum? I mean, sure, you could have it off from
that length by some degree without noticing a huge degree of variation,
but shouldn't that still be the goal to shoot for?
That would be the stance of an electrical engineer according to the
books anyway. Perhaps its different in practice?
Please enlighten us with more clarity ole wise one. 


Shannon Weinhold
Klasdja

-----Original Message-----
From: Lau, Gary [mailto:Gary.Lau@xxxxxx] 
Sent: Monday, February 08, 2010 7:30 AM
To: Tesla Coil Mailing List
Subject: RE: [TCML] 1/4 wavelength theory ??

The wire length can be made to be ANY proportion of the wavelength by
simply selecting the proper topload.  The take-home message is that
nothing special occurs when the wire length equals the
quarter-wavelength, and that there is no reason to use that as a goal
when designing a secondary.  That one should target the
quarter-wavelength for the wire length is a myth that needs to be
dispelled. 

Regards, Gary Lau
MA, USA

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On 
> Behalf Of Gary Peterson
> Sent: Monday, February 08, 2010 10:01 AM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] 1/4 wavelength theory ??
> 
> > . . . It's funny that some of the computer tesla coil programs still

> > mention the topload capacitance to tune for 1/4 wavelength. . . .
> 
> That's because a Tesla coil secondary is a 1/4-wave helical resonator.
> 
> The length of wire may be made EXACTLY 1/4-wavelength long.by 
> adjusting the proportions of the inductor and/or the terminal.
> 
> See http://www.nedyn.com/TeslaIntlSymp2006.pdf for additional
information.
> 
> ----- Original Message -----
> From: "Shaun Epp" <scepp@xxxxxxx>
> Subject: Re: [TCML] 1/4 wavelength theory ??
> 
> 
> Thanks to all that responded to my questions.
> 
> It's funny that some of the computer tesla coil programs still mention

> the topload capacitance to tune for 1/4 wavelength.  That's was why I 
> ask this question.
> 
> thanks,
> 
> Shaun Epp
> 
> 
> 
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