Re: [TCML] primary tubing

[DC Cox <resonance@xxxxxxxxxxxx>]

not if you are willing to accept sparks that are not as bright due to their
lower current.

Dr. Resonance




On Sat, Nov 7, 2009 at 6:04 PM, Frosty <frosty90@xxxxxxxxx> wrote:

> Hi all,
>
> According to a quick goolge, the skin depth of aluminium is actually
> (slightly) greater than copper at the frequencies we care about. But then
> it
> does have a higher resistivity, so its difficult to call without some
> actual
> calculations or measurments. In any case I would take a guess that the
> difference is not going to be anything worth worrying about.
>
> Cheers,
> Jesse
>
>
> If we agree that things would be a wash if the aluminum conductor diameter
> > was increased to normalize the DC-resistance, then I don't see any
> > suggestion that aluminum is inferior at RF frequencies any more-so than
> at
> > DC.  It's your statement suggesting that the resistance if frequency
> > dependant that I take issue with.
> >
> > Perhaps we're in violent agreement that it's simply better to just use
> > copper for the primary conductor, which is fine.  I've just seen too many
> > who beleive that ANY use of aluminum in a Tesla coil is unsuitable
> because
> > skin effect will render it a lossy and terrible conductor, which just
> isn't
> > true.  I've seen folks suggest that one should not have solid aluminum
> > electrode holders and supports in an RSG, which is just silly.
> >
> > Regards, Gary Lau
> > MA, USA
> >
> >
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla