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Re: Top Load Optimizing - Q?
>
> Original Poster: Terry Fritz <twftesla-at-uswest-dot-net>
Hi Terry,
Question at bottom -
>
> >> 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
Terry,
Regarding quenching and primary loss -
Have you attributed the primary losses to most or all of the 1/2 power loss? Is
the primary loss simply I^2R loss?
Thanks,
Bart