Re: Safety Gap, Grounding, and Secondary Questions/Bipolar Oudin Considerations

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "B2 by way of Terry Fritz <twftesla-at-qwest-dot-net>" <bensonbd-at-erols-dot-com>

Hi Malcolm,
    Check out  http://www.ttr-dot-com/model5m_demo_coil.htm

10' at 2.5 KW is that close enough?

Cheers,
Barry

----- Original Message ----- 
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, August 16, 2001 9:54 PM
Subject: Re: Safety Gap, Grounding, and Secondary Questions/Bipolar Oudin
Considerations


> Original poster: "Malcolm Watts by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>
> 
> Hi John, all,
> 
> On 16 Aug 2001, at 16:15, Tesla list wrote:
> 
> > Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <FutureT-at-aol-dot-com>
> > 
> > In a message dated 8/16/01 2:53:48 PM Eastern Daylight Time,
> tesla-at-pupman-dot-com 
> > writes:
> > 
> > > Perhaps then the best application of a direct base
> > >  excited(by direct line connection as in Oudin Coil)
> > >  example is the magnifier, showing indeed that the
> > >  direct line base excited coil to be superior to that
> > >  of ordinary inductively coupled secondaries.
> > 
> > Harvey,
> > 
> > I still waiting for someone to demonstate that a magnifier
> > can produce longer sparks than a classic coil for a given
> > input power.  I used to be a magnifier advocate.  But not
> > after I did some comparative tests.
> > 
> > John Freau
> 
> I admit that I too am deeply skeptical since there are no theoretical 
> grounds I'm aware of for magnifiers producing more energy than is fed 
> into them. Experiments I've also done have yet to show that 
> magnifiers have any advantage in this respect.
> 
>     To my knowledge, there is still not a definitive formula out 
> there for optimising the resonator L/C ratio to get the best possible 
> result at the lowest useful breakrate as outlined by Greg Leyh for a 
> given primary energy. Defining this is a personal goal in my quest to 
> do the best I possibly can from a 230VAC 10A outlet. Bigger bang 
> sizes seem to be better than greater breakrates at some point so I'm 
> shooting for 100Hz breakrates and the largest primary energy that 
> wall socket allows me assuming wallplug to primary efficiency can be 
> pushed well in excess of 90%. At an ideal 100%, that is 23J. I think 
> that a figure in excess of 8' is on but this remains to be 
> demonstrated. Should I achieve this, it will not be with a short 
> resonator, at least not in a 2-coil system. The driver system in a 
> magnifier running at this primary energy would be sized in some 
> inverse proportion to the resonator.
> 
>      I once fantasized about a magical 10' at 2.3kW but that would 
> seem to be rather too optimistic.
> 
> "Some day, one day......."
> 
> 
> Regards,
> Malcolm
> 
> 
> 
>