Re: [TCML] My first Tesla

["DC Cox" <resonance@xxxxxxxxxxxx>]

You would have to look at the waveform of your coil on a scope to determine
the number of firing cycles.  At 2 mA you would probably use .002uF maximum,
which would be poor output due to the fact you are not putting much energy
into the coil, 1/2 CV^2.  Search for an nst --- much better way to go.

Dr. Resonance

On Fri, Jun 20, 2008 at 2:57 PM, Simon Dodd <Simon@xxxxxxxxxxxxxxxx> wrote:

> Thanks for that, I'm assuming you are talking about the Static Gap Primary
> LTR Capacitance equation, if so, The 1.4 x Cres would be in place of the
> NST
> current but how would I find the AC line frequency? I am running from a 12V
> battery...
>
> Thanks again for your continued help
>
> Simon
>
>
> On 20/6/08 2:48 pm, "DC Cox" <resonance@xxxxxxxxxxxx> wrote:
>
> > Ignition coils can not provide enough current to drive a cap bank, so
> > performance is usually very poor, at best on 3-4 inches of ourput spark.
> >
> > If you do use ignition coils, figure Cres will be equal to approx 2 mA
> per
> > coil, so 4 mA total current for the capacitive reactance equation.  Then
> use
> > 1.4 x Cres value so you don't blow the coils.
> >
> > If you can snag a used neon sign transformer you performance will
> increase
> > by at least 500%.
> >
> > I have plans for this type of coil and could email them to you if you
> > contact me off-list.
> >
> > Dr. Resonance
> >
> >
> >
> >
> > 2008/6/20 Simon Dodd <Simon@xxxxxxxxxxxxxxxx>:
> >
> >> Hi everybody,
> >>
> >> I have found this list extremely useful for finding information about
> >> coiling but I still have a few problems...
> >> I have attached a formula sheet and some diagrams of my design for ease
> of
> >> explanation.  My problem is that all the formulae are for NST designs
> that
> >> run on mains voltage and I am using a 12V battery to power two ignition
> >> coils in anti-parallel, therefore I don't know how to get my line
> voltage
> >> frequency and various other figures.
> >>
> >> Everything is built, I just need to tune it and find the value of MMC
> that
> >> I
> >> will need.
> >>
> >> I started with the design on this page;
> >> http://www.uoguelph.ca/~antoon/circ/hv/ss-tesla/ss-tesla.html
> >>
> >> Then changed to this design;
> >>
> http://www.rmcybernetics.com/projects/DIY_Devices/homemade_tesla_coil.htm
> >>
> >> Although my design is based on these specifications my Primary and
> >> secondary
> >> are of my own design, the circuitry is that of the second page above.  I
> am
> >> also unsure of the best way to connect the high voltage side of things,
> I
> >> have seen two different ways, one with the spark gap in series and the
> >> other
> >> in parallel with the primary coil.
> >>
> >> I am using a conical primary, I can send any more info on request.
> >>
> >> Thanks for your help in advance, keep coiling
> >>
> >> Simon
> >>
> >> --
> >> Simon Dodd
> >> Director/ Technical Manager
> >> Yes Boss Music
> >> 46a Theydon Road
> >> London
> >> E5 9NA
> >> UK
> >> www.yesbossmusic.com
> >>
> >>
> >>
> >> _______________________________________________
> >> Tesla mailing list
> >> Tesla@xxxxxxxxxxxxxx
> >> http://www.pupman.com/mailman/listinfo/tesla
> >>
> >>
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxxxxxx
> > http://www.pupman.com/mailman/listinfo/tesla
>
> --
> Simon Dodd
> Director/ Technical Manager
> Yes Boss Music
> 46a Theydon Road
> London
> E5 9NA
> UK
> www.yesbossmusic.com
>
>
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
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