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Re: Real data from real experiments.
Brent,
There is an even better reason to use high Vcap, low-C in a
primary....
<masssive snip>
> No charge is actually 'lost' - rather, it is simply re-distributed.
> The total stored potential energy is reduced though, according to the
> square of the voltage. Seems to me that this is exactly the reason why
> we use small value capacitors with a heaping amount of very high voltage
> in the primary circuit!
Example : let bang size = E, cap = C, primary = L. Surge impedance =
SQRT(L/C), peak current inversely proportional to surge impedance
and gap loss proportional to Ipk.
Let's double our surge impedance by halving C and doubling L (same
frequency) and keep bang size up by increasing voltage to compensate
for a drop in C.
We now have Z surge = 2x original, V = SQRT2 x original voltage (keep
E constant) giving current decreased by SQRT2, gap losses therefore
reduced by SQRT2.
Okay, this all needs the appropriate calculus done to truly
quantify peak values etc. but I think you can see the benefit
attainable.
Think I got that all right but stand to be corrected as usual,
Malcolm