[TCML] nnanred1's coupling values

["Lau, Gary" <Gary.Lau@xxxxxx>]

Hello no-name,

May I assume that a "Tesla transformer accelerator" is the same thing as a Tesla coil?  I've not encountered that term in the many years that I've studied Tesla coils.

It's interesting that of all the folks on this List who have spent years researching, building, analyzing, tuning, and tweaking Tesla coils, that we have all fallen into the rut of using inefficient coupling values, typically below 0.18.  Please share with us what levels of performance you see from your coil that uses the more efficient high value (k= 0.6, 0.54, 0.385) coupling.  Better still would be documentation of such a coil on a web site.  You have actually built such a coil, right?  Otherwise such a theory isn't worth the paper it's printed on.  Personally, I don't "by" it.

BTW, since you're not replying to an existing thread, it would be helpful if you could change the subject line to reflect the actual subject.

Regards, Gary Lau
MA, USA



> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of nnanred1@xxxxxxxxxxx
> Sent: Saturday, December 08, 2007 3:35 PM
> To: tesla@xxxxxxxxxx
> Subject: Re: [TCML] Re: Spark gap Resistance
>
> hi,
> the greatest efficiency occurs when the primary and secondary circuits resonate at
> the same frequency when they are decoupled.  k=0.  then you couple the circuits so
> that k= 0.6, 0.54, 0.385, 0.125.  when you do this the 2 coexisting waves in the
> coupled system have a frequency ratio of 2.  this causes an alignment of the 2
> voltage waves and obtains a maximum in voltage or pulse power.
> get the paper by j. r. reed, "Greater voltage gain for Tesla transformer accelerators"
> in october 1988 issue of Review of Scientific Instruments and there is a test
> procedure to set the coef. of coupling so simple a child can do it.
> The paper is written to disclose the grand max in performance for the transformer
> with a coupling of about 0.54.  The national labs use a coupling of 0.6;  but dont let
> any of that worry you. the k setting procedure is good for any coupling; like k=0.12.
> people read this paper and think it is for the higher couplings.  it can install any
> coupling if u have an o-scope or electron voltmeter and a signal generator to tickle
> the coupled circuit with.
> it really is simple.  and these operating points will produce the best transformers.
> what holds it back is reading comprehension.
> by now,

_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla