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Re: [TCML] magnifier efficiency



John,

I thought you ran your testing of which the formula was derived at 120 bps? I agree that higher bps may also meet the formula's prediction (may not, may exceed), but I thought the formula itself was derived with 120 bps operation. Is this not correct?

Take care,
Bart

futuret@xxxxxxx wrote:

Bart,

My formula does not specify 120 bps. For small coils, 120 bps is needed to
obtain adequate efficiency, but for larger coils, the bps can often be
higher at 400 to 600 bps, etc. and still meet the formula's "predictions".

Large coils tend to be more efficient anyway in the sense that transformers
and maybe other components become more efficient when they're larger.
The lower frequencies that large coils usually run at may help also.

John

-----Original Message-----
From: bartb <bartb@xxxxxxxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Tue, 9 Dec 2008 12:44 am
Subject: Re: [TCML] magnifier efficiency


The formula assumes the efficiency of John's coils at the measured power, measured spark length, at 120 bps. It is an excellent prediction of potential spark length and has stood the test time. Many times, coilers will fall below this value (based on their lack of experience or lack of attempts to produce longer sparks with a given coil). Other times coilers produce longer than predicted sparks (it happens). The formula is empirical and not based on 100% efficiency or anything of the sort. Take care, Bart H.S. J. wrote:
But, the formula most likely assumes 100% efficency and power
transfer.
> -- Thanks, *********************************************** Shelton Jacinto Email: hsheltonj@xxxxxxxxx

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