Re: 1500-3000 turn coils

["Luc" <ludev-at-videotron.ca> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Hi Ralph

For your question, if I understand Mark, he speak of a ratio 10 unit of length
to one unit of diameter and from what I know the best ratio for a tesla is 5/1,
the bipolar is just 2 coil joint by the base and sharing the primary.

>From what I know again  the big problem with bipolar is coupling, often over
coupling, it 's not easy as for a regular coil to change it ( you can't
rise the
secondary you need to increases the distance between the inner turn of the
primary and the secondary or split your secondary in 2 and move apart the 2
half
) Many people use a solenoid primary  and have arc between primary and
secondary. I could understand your misadventures.

Sooo much to learn .... From your previous post  I note: you already know a lot
and any way we all have a lot to learn that's why we are on this list.

Have fun with your projects.

Luc Benard

Tesla list wrote:

> Original poster: Parpp807-at-aol-dot-com
>
> In a message dated 9/10/00 12:15:52 AM Central Daylight Time,
> tesla-at-pupman-dot-com writes:
>
> <<  That's normal because your coil is especially long and an inverse cone
>  > primary give more coupling to the top winding. By the way  a coil with a
>  > 10/1 ratio could make a perfect bipolar.
>  >
>  > Luc Benard
>  > >>
>
> Luc,
> I have been playing with bipolar coils and I have more misadventures planned
> for
> the winter months. Would you kindly 'splain me what the 10:1 ratio refers to?
> Is that secondary length to diameter?
> Thanks. Sooo much to learn.
>
> Cheers,
> Ralph Zekelman