> Original poster: "D.C. Cox" <resonance@xxxxxxxxxx>
>
>
>
> Bad idea. I've already several reasons on this list why mounting the
> nst under the primary is a bad idea but people keep trying to do it
> wrong anyway. Magnetic field sweeps upward as well as downward and
> will go right thru you aluminum shield to induce currents in your
> copper xmfr windings. Also, downward sweeping magnetic fields will
> give up power, ie losses, in anything iron, steel, etc below the
> primary. Just don't do it --- it's very bad basic engineering!!!
>
> Aluminum does not stop a magnetic field. In high power Tokamaks they
> wind the high current windings on the "outside" of the aluminum
> container so the magnetic fields can effect the conductive plasma
> inside the container.
>
> Mount your nst in a box 4-5 ft away from the coil and you will be
> miles ahead without losing power or inducing RF currents into your
> xmfr windings.
>
> Dr. Resonance
>
>
>
> >Original poster: "Rich" <rdjmgmt@xxxxxxxxxx>
> >
> >Spring is here and I am ready to start my next coil and was hoping to
> >put my HV transformer on the base the same as Gerry did on this fine
> >looking setup. My question to the wise ones, would it help to place an
> >alum RF shield over the top of the transformer because mine is NOT an
> >enclosed NST. It is from a laser power supply, the windings are exposed
> >and are the highest part of the transformer.
> > I must also add that I smile each time I see the picture of Gerry
> >standing by his setup keeping safety in mind and one hand in his pocket
> >and a good ground by being barefoot. :)
> >
> >Rich , from the middle of Missouri
> >
> >
> >
> >
> >Original poster: "Gerry Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
> >
> >Hi Kevin,
> >
> >I run my NST farm (15KV 120ma under the primary and have no
> >problems. It is about a 1.5 ft underneath the primary. You can look
> >at the pictures in the directories at:
> >
> >http://hot-streamer.com/temp/GerryReynolds
> >
> >and judge for yourself. I think if you keep things at a reasonable
> >distance underneath the primary, you will be OK. I did think about
> >the magnetic field orientation when placing the Terry filter
> >components trying to get field cancellation where possible, but dont
> >know how critical this is at that distance.
> >
> >Gerry R.
> >
> > >Original poster: "MakingLightning" <MakingLightning@xxxxxxxxxxx>
> > >
> > >Does it hurt to put your main power transformer and
protection > > filter
> >under
> > >the teslacoil?
> > >
> > >Some people have said not to put metal or protection filters
under > > it
> >and
> > >they should be put aside somewhere.
> > >This makes sense but I have seen many coils that have everything but
> >the
> > >variac under one. In practice has anyone found out if it
really > > makes
> >much
> > >of a difference?
> > >It sure would make for a neat package to have everything except the
> >variac
> > >under the coil.
> > >
> > >Kevin
> > >
> > >
> >
> >
>
>
>