Re: Please help with capacitor

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

Original poster: "Gerry Reynolds" <gerryreynolds-at-earthlink-dot-net> 

Philip,

Resonance for you transformer is about 10.6 nf.  13 nf might be too close to
resonance and your safety gap setting will be important.  You might try 16
nf for an LTR value.
(assuming 60 Hz)

Gerry R
Ft Collins. CO

 > Original poster: "Philip Brinkman" <peeceebee-at-mindspring-dot-com>
 >
 > I'm making a new flat plate capacitor for use with my 15,000 volt 60 ma
 > NST. I'm using aluminum foil plates 7.5"x9" (67.5 sq. in.) with 30 mil
 > polyethelyne (6 layers of 5 mil each) between each plate. Using the
formula
 > C=kA/d (k=2 ) I get 3.25 sq. meters or 74 plates, does this sound right?
My
 > last capacitor had only 30 plates. I'm aiming for .013 microfarads.. is
 > this right? Using different programs I get different values of capacitor
to
 > use.
 >
 >