Black Plastic

To: tesla-at-pupman-dot-com
Subject: Black Plastic
From: Trsla List <tesla-at-stic-dot-net>
Date: Mon, 02 Jun 1997 23:07:50 -0500
Approved: tesla-at-stic-dot-net

Subject:  Re: Looking for Coilers in my area!
  Date:   Sat, 31 May 1997 14:08:39 -0700
  From:   "David Knaack" <dknaack-at-rdtech-dot-com>
    To:   "Tesla List" <tesla-at-pupman-dot-com>


>Subject:    Re: Looking for Coilers in my area!
>      Date: Sat, 31 May 1997 21:26:07 +1000
>      From: Peter Electric <elekessy-at-macquarie.matra-dot-com.au>
>        To: Tesla List <tesla-at-pupman-dot-com>
>References:           1
<snip>
>The experienced guys will probably shoot me down in flames but I made my
>rolled cap out of black plastic sheet that is commonly used as a
>condensation barrier under concrete slabs. It is dirt cheap,
>Polyethylene (I think) and is .2 mm or about 8 mil thick so you need
>Quite a few layers. I think from memory I used 5 layers between 4 plates
>giving me two caps in series and a total of .015uF. Rolling the whole
>lot up is a bit of a challenge but I have been running this in 20W40
>engine oil with 15KV for several months now with no problems.
>
>Cheers,
>
>Peter E.
> 
I bought a roll of this plastic (to cover a drying concrete slab) for
about
20-30 bux, it is about 10 yards wide and 50 yards long.  At that price,
I
figured it wouldn't really matter how much of it it takes to build a
cap,
it will still be cheaper!

David Knaack