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Re: Bipolar or half wave.

Tesla List wrote:

> Original Poster: "Malcolm Watts" <malcolm.watts-at-wnp.ac.nz>
>
> Hi Luc,
>            I have done exactly what you suggest but I didn't use a
> single 1/2 wave secondary. Instead I used a passive resonator
> identical to the driven one as the "earth" counter poise and not only
> eliminated the need for a RF ground but also enjoyed the benefit of
> extra sparklength between the two coil tops. A straight halfwave coil
> doesn't need a ground as you suggest.
>
> Regards,
> Malcolm
>
> On 18 Mar 00, at 14:15, Tesla List wrote:
>
> > Original Poster: "Luc" <ludev-at-videotron.ca>
> >
> > Hi to all of you!
> >
> > I'm not an experience coiller I just build 4 coils in my life my first
> > 35 years a go whit my father a small VT coil 2 small triode #? 100W
> > approx. the biggest one 500W 3.25 secondary ASRG and I built  these for
> > other people because I don't have place at home I live in Montreal
> > (Canada) third floor apartment.
> >
> > In my apartment I use one room for electric and electronic work, I
> > manage to bring a ground from a pipe to that room because no ground in
> > the electric installation (old apartment). My problem is: it 's really
> > impossible to have a RF ground , but I really like to build a small
> > Tesla at home for the first time in my life.
> >
> > My project is to build a small,  something like 300W or less , bipolar
> > or half wave coil my question now is it possible to operate that coil
> > whit out a RF ground  and in a 20 feet of electronic equipment .
> >
> > Whit the coils I built before I never have the time to play a lot whit
> > design and refinement.
> >
> > Comment and suggestion are welcome.
> > Luc Benard
> >
> > P.S. I just buy a digital camera this week and I gonna have a ftp site
> > soon it will make exchange easier.
> >
> >

Hi Malcolm

Tx for your attention ,you suggest using a passive resonator as counter
poise for a quarter wave resonator ? I imagine you need to use the same
inductace,same self capacitance and same top laud but  out of the field of
the primary .Do you know if it's an advantage in regard of a half wave or a
bipolar resonator.

Excuse my english.
Luc Benard(Montreal)