Re: [TCML] New to the site

[Doug <doug11642@xxxxxxxxxxx>]

No, No plans. Just designing them myself with input from builders with 
much more experience.
Thank you for the complement!
Doug Johnson

On 3/26/2015 5:14 PM, wt5y wrote:
> Did you build those whimursts from plans?  They are very nice!
>
>
> Sent from my Samsung GALAXY S5™, a Cricket 4G LTE smartphone
>
>
> -------- Original message --------
> From: Doug <doug11642@xxxxxxxxxxx>
> Date:03/26/2015  15:48  (GMT-06:00)
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Cc:
> Subject: Re: [TCML] New to the site
>
> Here is my next question; The plans I am following for my first TC are
> quite detailed and easy to follow, but I see a few things that I think
> could be better, such as not routing the secondary wires inside the coil
> form. SO given that the transformer is a neon 60 hz-6000 v-30 ma, and
> the Cap is a 0.01 mfd - 10,000 vac , and it will be a spark gap TC, and
> an 8" toroid What would be the optimum primary and secondary coil confg.
> I know there must be a formula for this, but that would just confuse me,
> math is not my long suit.
> I just want to build this the best that it can be as I do my other
> projects, go here ( https://www.youtube.com/user/dr043042#p/u) to see
> some of them.
> Thank you very much for any advice,  Doug Johnson
>
> On 3/25/2015 8:39 PM, Jim Lux wrote:
> > On 3/25/15 7:52 AM, Timothy Gilmore wrote:
> > > The secondary bottom will go to electrical house ground.
> > Uhh.. not necessarily.  Yes, it should eventually connect to
> > electrical safety ground (aka green wire or third prong ground), but
> > you do not want to use that as your only RF ground.
> >
> > Even a small coil (especially a small coil, which will have a higher
> > operating frequency) should have a counterpoise or good ground *plane*
> > under it.
> >
> >
> >
> >   If a larger sized
> > > coil is made - it will go to both electrical ground and RF ground (made
> > > with a 4-8 copper pipe in the earth or large sections of Hardware
> > > cloth/Chicken wire directly placed under the tesla coil - ensuring its
> > > considerably larger than the top load).
> > I'm not a big fan of ground rods.  They're not a particularly good
> > connection to "ground".
> >
> >
> > I am a fan of a screen counterpoise.  Hardware cloth, chicken wire,
> > aviary netting, reinforcing mesh, sheets of aluminum foil, etc.
> > Radius of counterpoise should be comparable to the height of the
> > topload above the mesh.
> >
> > So if you have a table top coil that's 2'-3' tall, you'd have
> > something like a 4 foot diameter or square conductive plane under the
> > coil on the table top.
> >
> > If you have a 5 foot secondary on top of a 3 foot high equipment
> > cabinet with your rotary gap, etc., so the topload is 8-9 feet high,
> > then you want a 20 foot diameter counterpoise.
> >
> >
> > another alternative is a fence or cage around the coil, connected to
> > the bottom of the secondary.
> >
> > > The secondary top "should" go to a top load of either a sphere for
> > > smaller
> > > distributed multiple sparks or to a donut shaped toroid which
> > > provides some
> > > additional minimal capacitance and will allow build up of sparks to be
> > > longer in length.
> > >
> > > Tim
> > >
> > > On Wed, Mar 25, 2015 at 8:01 AM, Doug <doug11642@xxxxxxxxxxx> wrote:
> > >
> > > > Gentlemen; I am building my first Tesla Coin rated at around 250.000
> > > > volts
> > > > and would like some advice on routing and connecting the secondary coil
> > > > wires top and bottom.
> > > > Thank you for any help you can provide.
> > > > Doug Johnson
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