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Re: Salt Water Caps (fwd)



---------- Forwarded message ----------
Date: Mon, 24 Feb 1997 23:13:51 -0800
From: Bert Hickman <bert.hickman-at-aquila-dot-com>
To: Tesla List <mod1-at-pupman-dot-com>
Subject: Re: Salt Water Caps (fwd)

Tesla List wrote:
> 
> ---------- Forwarded message ----------
> Date: Fri, 24 Jan 1997 20:03:19 -0600
> From: Nathan Lamphere <randyl-at-ronan-dot-net>
> To: tesla-at-pupman-dot-com
> Subject: Salt Water Caps
> 
> Hello again--
> 
> After being very busy with work and even more happily getting engaged:)
> I am ready to go back constructing my first Tesla coil.
> 
> I am now at the point of making my capacitors. I thought that it might
> be wise to make salt water caps because of ease/ and price. I downloaded
> the Tesla Archive File by David Lima on how to make these capacitors.
> According to the plans, however, he said his bank of 6 salt water caps
> had a capacitance of 4.3 nF.  I have calculated that I need at least a
> .0063 uF capacitor.
> 
> So if I understand things correctly, using his plans I would need 1465
> of these banks just to get the right capacitance, disregarding the
> voltage.  OBVIOUSLY something is very wrong here.
> 
> It seems several of you have built salt water caps.  Can you tell me:
> 
> 1) Are his 4.3 nF (per bank of 6 caps) correct?  Or is it a misprint?
> 2) If his numbers are correct, what can I do to make a different type of
> salt water cap?  I could sooner afford to buy a commercial cap as to
> drink that much soda for 8700 bottles.
> 3) Am I missing the boat somewhere?
> 
> Here is another start for a thread to add to the Tesla Guide.
> 
> Thanks
> Nathan
> --
> Nathan Lamphere
> http://www.ronan-dot-net/~randyl/nfolder/nathan.html
> Javascripts: WebPageMaker - easily create your own webpage right online!

Nathan,

0.0043 uF = 4.3 nF = 4300 pF. SW caps usually are in the range of
600-900 pF depending upon the size bottle used and the thickness of the
bottles, so 6 of these at 4.3 nF total is in the ballpark. Assuming you
use the same size bottle, nine bottles ought to do the trick! 

Safe coilin' to you!

-- Bert --