From: 	Bert Hickman[SMTP:bert.hickman-at-aquila-dot-com]
Sent: 	Tuesday, June 24, 1997 8:01 PM
To: 	Tesla List
Subject: 	Re: CAPACITOR

Tesla List wrote:
> From:   Richard[SMTP:esmit-at-ilink.nis.za]
> Sent:   Tuesday, June 24, 1997 1:01 PM
> To:     tesla-at-pupman-dot-com
> Subject:        CAPACITOR
> Hi,
> I have redesign my capacitor that was made out of glass and foil.
> My new cap is made out of paper and foil, both dipped in oil so that the
> paper has the same dielectric strength of polyethylene. At last my spark
> from the secondary is more intens than ever before but now I get about 6
> inches spark and not 18 inches as I should from my 15000VAC 30mA. Can anyone
> help me, I don't know what is wrong.
> What can cause the intenser spark but not any longer sparks.
> Thanks
>  ------------------------------------------------------------------------
> |Richard Smit  | Telephone: +27-525-32634                                |
> |P.O.Box 566   | Email:     esmit-at-ilink.nis.za                           |
> |Bultfontein   | Age:       17 years old                                 |
> |9670          | Hobbies:   Tesla Coils; Computors; Paranormal; UFO's    |
> |South Africa  | Birthday:  5 October 1979                               |
> ------------------------------------------------------------------------


The oil soaked paper may have a higher dielectric strength than before,
but it sttill won't perform nearly as well as polyethylene. This is
because the oil and paper dielectric materials are absorbing a
significant portion of  energy that would otherwise go into sparks off
the top of your secondary. In this regard at least, going from glass to
oiled paper will not give you much improvement. Also, are you sure your
coil is properly tuned with your new cap? 

-- Bert H --