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Re: [TCML] magnifier efficiency

John, I apparently missed this detail about the formula. I remember when you performed various testing (keeping around 1050W for comparison purposes) and I know you also ran obvious 120 bps as well as higher break rates (up near 400 bps?). In my mind, my conclusion was that with the coils "you" personally tested, 120 bps gave best results. From that is where my conclusion was derived. But if other coils are also included during the formulation sequence, then excellent! This was something I was not aware of. 

Best regards,
Bart

futuret@xxxxxxx wrote:

Bart,
My formula is based on my coils but also on other folks' larger coils. I always said that my formula was based on various coils such as my research coil, Hull's Nemesis, 
Greg Leyh's Electrum, etc.

John
--


-----Original Message-----
From: bartb <bartb@xxxxxxxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Tue, 9 Dec 2008 8:57 pm
Subject: 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 Li
st <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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