Re: Please help with capacitor

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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.