[Prev][Next][Index][Thread]

Re: Top Load Optimizing - Q?



HI Terry,
                Under what secondary discharge conditions - air or 
attached?  Is your measuring technique detailed somewhere in you 
webpage?  I'd like to have a look if it is please.

Regards,
Malcolm

> Original Poster: Terry Fritz <twftesla-at-uswest-dot-net>
> 
> At 11:49 AM 03/21/2000 +1200, you wrote:
> >Hi Terry,
> >              Would you mind explaining something please?
> >
> >> Original Poster: Terry Fritz <twftesla-at-uswest-dot-net>
> > 
> ><snip>
> >> They usually have to add capacitance or more turns to the primary circuit
> >> which is something they wish they had known before.  They KNOW when they
> >> get it right ;-))  The only heat loss that really matters is that when a
> >> coil is out of tune, ALL the energy goes into burning up the spark gap.
> >> When they are in tune, half that energy goes into the arcs (and the other
> >> half still tries to burn up the gap ;-)).
> >
> >Under what exact experimental conditions did you measure that and 
> >how did you measure it?  I have measured transfer efficiencies in 
> >excess of 80% in some coils and given that one can get rid of 
> >secondary energy in a spark before it returns to the primary, the 
> >gap loss is nowhere near that bad *under this particular condition*. 
> >
> >Regards,
> >Malcolm
> ><snip>
> >
> 
> Hi Malcolm,
> 
> 	It comes from measureing my coils.  My large coil delivers about 225 watts
> to the arc and burns 276 in the gap.  My small coil delivers 80 watts to
> the arc and burns 112 in the gap.  So I generalized...  My gaps do not try
> to quench anymore but I try and minimze primary loss.
> 
> Cheers,
> 
> 	Terry
> 
>