Re: Maximum voltage gain in a Tesla coil

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

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


Is the 5 pF per ft. of streamer still accurate or has it changed.

Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913
 >  >
 >  > Hi Antonio,
 >  >
 >  > I've had this belief that detuning say the primary to a lower frequency
was
 >  > to compensate for added topload due to streamer formation.  Is this
true? I
 >  > take it that what you are describing here is another consideration?
How the
 >  > "streamer affect" fit in to the optimization.
 >
 > Streamers essentially add more capacitance to the output side,
 > decreasing the natural resonance frequency of the secondary system.
 > All that is needed then is to retune the primary as you describe.
 > More elaborate modeling can consider streamers as adding a series RC
 > circuit across the secondary, with the resistor accounting for the
 > power dissipated in the streamers. In this case the model structure
 > changes. It may be possible then to optimize the circuit for
 > maximum energy delivered to the streamers. My program can't do this
 > now, but I would not expect a big departure from the regular tuning
 > for the lossless circuit.
 >
 > Antonio Carlos M. de Queiroz