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Re: Salt Water Caps (fwd)
---------- Forwarded message ----------
Date: Sat, 1 Mar 1997 02:55:58 -0700
From: "DR.RESONANCE" <DR.RESONANCE-at-next-wave-dot-net>
To: Tesla List <mod1-at-pupman-dot-com>
Subject: Re: Salt Water Caps (fwd)
To: Bob Schumann
The poly bottles will work, but a Rich pointed out the walls are rather
thin. A sudden puncture can produce reflected standing waves that might
damage a neon transformer if not well protected with RF chokes.
We use some large "cooking" polyethylene jars with a .060 wall that seem to
work well to construct replicas of antique Leyden jars. We fit them with
brass balls and oak wood tops to make them look antique. Typical jar is 16
inches high with a dia. of 10-12 inches. We use foil up inside and outside
2/3 height of jar. Average value is 2,000 pFd at 60 KV DC per jar.
The poly jars are imported (Danish I think). Check with your local cooking
outlets in large city.
60 mils in an absolute minimum for 12 KV and 90 mils is better. Use 120
mils if running a 15 KV (rms) transformer.
DR.RESONANCE-at-next-wave-dot-net
----------
> From: Tesla List <mod1-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Re: Salt Water Caps (fwd)
> Date: Friday,February 28,1997 8:33 PM
>
>
>
> ---------- Forwarded message ----------
> Date: Fri, 28 Feb 1997 00:19:13 -0500 (EST)
> From: richard hull <rhull-at-richmond.infi-dot-net>
> To: Tesla List <mod1-at-pupman-dot-com>
> Subject: Re: Salt Water Caps (fwd)
>
> At 09:24 PM 2/26/97 -0700, you wrote:
> >
> >
> >---------- Forwarded message ----------
> >Date: Wed, 26 Feb 1997 06:12:53 -0500 (EST)
> >From: Bob Schumann <tesla-at-america-dot-com>
> >To: Tesla List <mod1-at-pupman-dot-com>
> >Subject: Re: Salt Water Caps (fwd)
> >
> >[big snip - see previous posts]
> >
> >As I follwed this thread, something came to mind that I want to throw
> >out to the group for thought. I have noticed at the stores recently,
> >more and more products (like minute maid...etc) coming out in poly
> >bottles. I wonder if there would be an advantage to using these versus
> >glass. I know that the dielectric constant of glass is above poly but
> >one would not have to worry about broken glass again. I also wondered
> >if the bottle 'wall' would be thick enough to withstand punctures.
> >
> >Just a thought
> >Bob Schumann
> >
> >
> >Bob,
>
> Most common bottles have 20 mil or thinner walls. Good for 4 KVAC, but
> could be pushed higher by an adroit experience user with good gap skills.
>
> Richard Hull