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Re: [TCML] magnifier efficiency



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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