RE: [TCML] poor coil performance again- help!

["Lau, Gary" <Gary.Lau@xxxxxx>]

The answer would generally depend on the power level of your coil.  Since you're using a rather modest 6kV/50mA NST, you could use pretty much anything larger than #18 AWG, solid, stranded, or braided, without a noticeable dent in performance.  This assumes that the length of the interconnects is small, less than 1-2 feet.  But most folks use a heavier gauge, in part so the wire is stable and doesn't flop about, and in part because use of heavy gauge wires may just look cooler.

Regards, Gary Lau
MA, USA



> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of Ryckmans, Thomas
> Sent: Monday, April 21, 2008 7:30 AM
> To: Tesla Coil Mailing List
> Subject: RE: [TCML] poor coil performance again- help!
>
> Thanks... What kind of cable can you use for the primary connections? Would a
> copper braid (normally used for earthing) be okay?
>
> Cheers
>
> Thomas
>
> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of DC Cox
> Sent: 21 April 2008 03:52
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] poor coil performance again- help!
>
> The caps are causing massive losses.  The corona losses you can see.  The
> losses you can not see is the dielectric heating of the glass by the RF
> currents which is wasting at least 25% of your input power.  Without good
> power and RF currents even the best primary design can not transfer the weak
> energy into the secondary coil.  Massive primary caps losses produce
> restricted current flow in the pri, especially in the pri coil.  Low pri
> coil peak currents produce weak magnetic fields with less energy.  Less
> energy to transfer into the sec where the high potential is produced by the
> collapsing magnetic field (weak from your inefficient pri caps).
>
> Good performance from even a small coils demands:
>
> Hi-Q caps such as MMC caps especially designed for RF  peak currents
> Largest possible dia on secondary inductor as potential produced is   L x
> dI/dt      The inductance L is produced by a large radius sec inductor.
> Using at least #6 AWG wiring on all of the pri to handle the high peak pri
> currents efficiently without resistive losses
> Good spark gap design to provide effective quenching
>
> I do carry MMC caps --- contact me off-list if you need some.
>
> Regards,
>
> Dr. Resonance
>
>
>
>
> On Sun, Apr 20, 2008 at 3:09 PM, Thomas Ryckmans
> <thomas.ryckmans@xxxxxxxxxx>
> wrote:
>
> > Hello,
> >
> >
> >
> > I rewired my small coil to get this:
> >
> >
> >
> http://lh3.ggpht.com/Thomas.Ryckmans/SAuuyEC3o6I/AAAAAAAAAXw/4l1Z3jR_w
> m8/s14
> > 4/Tom_rewired_coil.JPG
> >
> >
> >
> > (I am adding the JavaTC file below)
> >
> >
> >
> > My NST is 6kV 50 mA

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