[TCML] magnifier efficiency

[bartb]

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 at aol.com 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 at classictesla.com>
> To: Tesla Coil Mailing List <tesla at pupman.com>
> 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 at aol.com 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 at classictesla.com> 
>> To: Tesla Coil Mailing Li
> st <tesla at pupman.com> 
>> 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 at yahoo.com 
>>  
>>> *********************************************** >> >> 
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