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Re: How do I get a good RF Ground? (and: Hello Again!)
From: DR.RESONANCE[SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent: Sunday, October 26, 1997 10:30 AM
To: Tesla List
Subject: Re: How do I get a good RF Ground? (and: Hello Again!)
Hello Adam:
I also have a coil similar in size to yours. We take it out to schools for
demos from time to time. We use the power line ground and 12 AWG wire on
the wiring. We also run a separate 8 AWG stranded wire from the base of
the sec coil to any other ground we can find such as a water line or
electrical panel, etc. This arrangment seems to work out fine for demos
and sometimes we don't have any other ground so we just rely on the power
line ground and it seems to work fine for short runs in a classroom
environment. We use a large copper battery clip on the 8 AWG wire to make
it convenient to clip to any other nearby grounds in the classroom.
Hope this helps out.
DR.RESONANCE-at-next-wave-dot-net
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> From: Tesla List <tesla-at-pupman-dot-com>
> To: 'Tesla List' <tesla-at-poodle.pupman-dot-com>
> Subject: How do I get a good RF Ground? (and: Hello Again!)
> Date: Sunday,October 26,1997 12:31 AM
>
>
> From: Adam[SMTP:absmith-at-tiac-dot-net]
> Sent: Saturday, October 25, 1997 8:50 PM
> To: tesla list
> Subject: How do I get a good RF Ground? (and: Hello Again!)
>
>
> Hi again folks, I've been off the usa-tesla list since I finished my last
> coil back in summer '95, and it seems dead now, so I've joined this one.
> :-)
>
> My question for today is:
>
> I have a medium size coil that I wish to take around with me for
> demonstrations. By medium-sized I mean it is a 4.5" dia by 24" coil
> firing off 2 foot sparks with input from a 12kV/60mA neon. Outdoors, I
> have just been running a short piece braid from the coil to a 4 foot
> piece of copper tubing I hammer into the ground, but I really don't know
> anything about RF earth grounding or about what I am doing. I'm an EE,
> and I know the all basics, but when it comes to specifics I am an Audio
> and DSP guy; much more of a mathematician and programmer than power
> engineer.
>
> What I need is a solution for grounding indoors, especially one that will
> prevent damage to equipment that may be on the same power line, spoken
> from experience. Are powerline filtering chokes a big help?
>
> -Adam
>
>
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>
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>
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> Adam Smith
> absmith-at-tiac-dot-net
> Epoch, Inc. Digital Music Project
>
> www.tiac-dot-net/users/absmith/ Now with MP3! Musik. Macht.
Macintosh.
>
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