[TCML] ARSG Design
f-h at c.dk
Fri Jul 10 10:35:22 MDT 2009
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:
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.
Cheers, Finn Hammer
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 at aol.com> 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:
>> Rotary Disc:
>> 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
>> Tesla mailing list
>> Tesla at www.pupman.com
> Tesla mailing list
> Tesla at www.pupman.com
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