Re: Bipolar Coil

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "colin heath" <colin.heath4@xxxxxxxxxxxx>

hi there,
            thanks for the reply. that has helped a lot.
cheers
colin

----- Original Message -----
From: Tesla list <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Tuesday, December 14, 2004 6:39 PM
Subject: Re: Bipolar Coil


> Original poster: jdwarshui@xxxxxxxxx
>
> To: Colin Heath
>
> Sorry about the long delay in a response.
>
> The easiest recipe for a half wave is to copy a good wire length
> quarter wave coil design and then double the inductor length. Also you
> split the quarter waves calculated top end capacitance between the two
> ends.   It may seem strange that you can simply add another inductor
> section without redefining the inductance and self capacitance, but
> the bottom line is that these L.C devices behave very much like
> mechanical resonant cavities where doubling the length of a chamber
> or  rope, or  pool of water etc. simply provides another place for a
> wave (or it 's conjugate) to repeat itself.
>
> It is also possible to build a non wire length bi polar coil,  Mr.
> Cooper has a finely crafted example of one of these posted on the
> Tesla Web Ring. My recollection is that he used one of the Tesla coil
> design programs.
>
> The ends of solenoids are sharp so breakout is expected, you can solve
> this by capping the ends of the solenoids with metal spheres and
> attaching 3/4 inch pipe to remote whatever remains of your desired top
> end capacitance (most of the top end gets eaten up by the solenoid end
> spheres and pipe).
>
>
>