Re: Stretch film capacitors?

To: tesla-at-poodle.pupman-dot-com
Subject: Re: Stretch film capacitors?
From: Tesla List <tesla-at-stic-dot-net>
Date: Fri, 28 Mar 1997 07:16:10 -0600
Approved: tesla-at-stic-dot-net

Subject: 
        Re: Stretch film capacitors?
  Date: 
        Fri, 28 Mar 1997 20:48:33 -1200
  From: 
        Ken Smith <ksmith-at-ihug.co.nz>
    To: 
        Tesla List <tesla-at-pupman-dot-com>


>I have been recently preparing to build a rolled poly capacitor and
>searching for a reasonable supplier of the poly sheeting.  Browsing
>through
>a plastics catalog, I noticed they had stretch film at a real cheap
>price.
>This is the stuff warehouses use to wrap up pallets of boxes with.  It
>comes
>in a variety of sizes (60, 70, 80, and 90 mil) and lengths.
>
Hi,
        Watch out that this is really what you think it is.  Been here,
done
this and it may just be that your 90mil is really 90 microns - IOW cling
film sheeting.  You can do it with this but you need an awful lot of
layers
and rolling the cap is damn near impossible.

90 mil sheet is not stretchy (leastways not that I have come across) - I
would hazard a guess that we are talking microns here and 90 mil -=-
2250
microns (roughly) and that's a lot of layers to keep inline....

Hope this helps

Mind you - if I am correct you will have an awful lot of food covering
spare...

Ken
>
Ken Smith
Weymouth
Auckland 
http://homepages.ihug.co.nz/~ksmith
ksmith-at-ihug.co.nz