Re: Primary tank cables

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

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


I should also add that increased performance will produce a larger spark,
and with this additional capacitance, ie, 5 pF/ft, your sec resonant freq
could drop a bit.  This is usually compensated with more primary inductance.

Dr. Resonance
 >
 > Resonant freq is determined by the physical geometry of the capacitor and
 > inductor.  Changing the tank cables should not change the fres unless you
 > change the physical length of the wire, ie, more or less inductance.
 >
 > Performance, however, could increase as you have wire with less resistance
 > and which provides higher peak current in the primary which leads to more
 > intensity in the magnetic field.
 >
 > Dr. Resonance
 >
 > Resonance Research Corporation
 > E11870 Shadylane Rd.
 > Baraboo   WI   53913
 >  >
 >  > >It has improved my output quite substantially.  However my question
is,
 > how
 >  > >does this affect tuning?  I don't believe I am correctly tuned
anymore.
 > I
 >  > >am wondering wether getting better power transfer would cause the
need
 > to
 >  > >move in or move out the primary tap point, i.e. does better power
 > transfer
 >  > >increase or decrease the resonant frequency of the pirmary circuit ?
I
 > have
 >  > >heard it can and does sometimes make a difference.
 >  > >
 >  > >Rgs
 >  > >Ian
 >  >
 >  > Ian,
 >  >
 >  > Better power transfer may make the output sparks longer.  These
 >  > longer output sparks will have more capacitance, so they may require
 >  > a retuning of the primary for best results, thereby making the
 >  > sparks even longer.  You may need to tap a 1/2 turn or even
 >  > a full turn outward on the primary to give more primary inductance.
 >  > (assuming you were tuned correctly originally using the old primary).
 >  >
 >  > John
 >  >
 >