Re: [TCML] ARSG Design

[Finn Hammer <f-h@xxxx>]

All,

For shorts distances, like details in a rotary, It makes little 
difference which of the highly conductive materials you use: Allu, 
copper, brass, bronze.
Check this rotary:
http://home5.inet.tele.dk/f-hammer/tesla/museum/sparkgap/sparkgap.htm
with it´s allu ring and bronze electrode holders.
The primary is spring hard bronze, another notoriously poor conductor of 
RF, however, the coil is now for 9 years on end a sure winner at the 
Danish Electricity Museum.
http://www.youtube.com/watch?v=H1RzN43Ql1I

Cheers, Finn Hammer

http://home5.inet.tele.dk/f-hammer/tesla/tesla.htm


DC Cox skrev:
> Check out the conductivity values for brass vs. aluminum at your designed
> resonant freq.  You will find brass to be the clear winner.
> Alum is only acceptable at 60 Hz power freqs.  Alum at your res freq will
> limit the peak currents, which you want to be a maxiumum value for
> almost any RF design.
>
> The current in a series circuit is always limited by the max resistance
> component at all points in the circuit.  Even small losses
> begin to rapidly add up at RF frequencies.
>
> Dr. Resonance
>
>
>
>
> On Thu, Jul 9, 2009 at 8:01 PM, Andrew Robinson <teslamad@xxxxxxx> wrote:
>
>   
> > Check out these designs, I need some advice.
> >
> > Complete assembly:                  http://host.teslamad.com/assembly.jpg
> > Stationary electrode insulator:    http://host.teslamad.com/Insulator.PDF
> > Stationary electrode:
> > http://host.teslamad.com/Electrode.PDF
> > Rotary Disc:
> > http://host.teslamad.com/Disk.PDF
> > and ring for back of disc:            http://host.teslamad.com/Ring.PDF
> >
> > The stationary electrodes were going to be made of brass as was the
> > conducting ring to connect the rotary electrodes, but I started thinking...
> > Aluminum is probably a lot cheaper. Can anyone give me a good reason as to
> > why I wouldn't want to use Al. Guess the question really is, why wouldn't I
> > want to use Al. Its a better conductor than brass but softer if memory
> > serves me correctly. Thanks for the input.
> >
> > Andrew Robinson
> > www.teslamad.com
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxxxxxx
> > http://www.pupman.com/mailman/listinfo/tesla
> >
> >     
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>   

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