Re: cap dielectric constant (K) of mylar

• To: tesla-at-poodle.pupman-dot-com
• Subject: Re: cap dielectric constant (K) of mylar
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Thu, 17 Apr 1997 22:44:27 -0500
• Approved: tesla-at-stic-dot-net

Subject:  Re: cap dielectric constant (K) of mylar
   Date:  Thu, 17 Apr 1997 21:05:10 EDT
   From:  wb8jkr-at-juno-dot-com (Mark S Graalman)
     To:  tesla-at-pupman-dot-com

>
>
>Does anyone have data on the dielectric constant of 
>mylar? I found some at a very nice price...and it seems
>tougher than the polyethlene sheet..thought of using 
>it for the caps we're building...
>
>thanks, appreciate comments..
>
>Chris Dunagan
>
>
  Chris,

  I can't remember for sure, but it seems to me that the K of mylar
is about 4.5 or so. BUT I wouldn't use it for building a tesla primary
capacitor, mylar doesn't like high frequency A.C. and the losses are
quite high, in fact it would most likely melt in tesla coil service.


                        Mark Graalman

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