Re: SW variable cap measurements

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Malcolm Watts by way of Terry Fritz <twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>

Hi Shad,
         You might like to try coating the bottles with wax.

Regards,
malcolm

On 16 Sep 2001, at 17:47, Tesla list wrote:

> Original poster: "Sundog by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<sundog-at-timeship-dot-net>
> 
> Hi All!
>  
>  It works!  I used a single 12oz Heineken (green glass) bottle, filled to the
> neck curve with SW, in a plastic bucket filled with SW.  My radio shack DMM
> told me the bottle by itself (I was holding it by the neck, above the water),
> was .172nf    Mkay.  Wrapping my hand around the bottle brought the
reading up
> to .230nf 
>  
>    With the bottle's bottom about 1/8" below the surface, I got a healthy
solid
> .320nf.  With the water levels equal, I got 1.23nf.  The capacitance climbed
> steadily as I submerged the bottle in the bucket.  Just too awesome.
But, when
> I began to raise the bottle out of the water, the capacitance dropped very
> slowly, down to about .7nf.  Wiping the bottle off with a paper towel dropped
> the capacitance down a lot.  So the water clinging to the sides of the glass
> kept the high capacitance going.  So it works properly for increasing the
> capacitance, but lowering it doesn't work so well.  I didn't have any oil to
> add to the water to see if that would help.  
>  
> Next up tonight I'll try a brown glass bottle (Fosters, the best), but I'm
> expecting about the same results.  
>   
>    So I'll have to get myself in gear on my tube coil.    
>  
>                         so far, so good!  The idea works, I just have to
try it
> in actual useage.  
>     
>                 Shad
>  
>  
> Once I have my tube coil whipped back into shape, I'll have a working
system to
> test the idea on.    So it works, at least for increasing capacitance.  
> 
> 
> 
>