Re: Plate Caps of PCB

Subject:       Re: Plate Caps of PCB
       Date:   Mon, 21 Apr 1997 08:20:03 +1200
       From:   "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz>
Organization:  Wellington Polytechnic, NZ
         To:   tesla-at-pupman-dot-com

Hi Phil,
          I've made and run a couple of PCB caps. They are difficult 
to connect easily and they don't work as well as a good pulse cap but
they do work.


> I've been thinking of making a stacked cap from fibreglass PCB.  I read
> it has a Dielectric
> Constant (K) of about 5 (5.2), and a puncture voltage of 700V/mil.  The
> stuff I use is about
> 1.6mm thick, or about 63 mils, for 44kV.  This may be optimistic, but it
> could probably be
> conservatively rated around 30kV or so. Using back-to-back pairs of
> single-sided board, you
> could double the voltage rating.