Re: Cap materials

Subject:   Re: Cap materials
  Date:    Thu, 17 Apr 1997 11:13:57 -0400
  From:    Lord Talimar" <lordtali-at-mill.tds-dot-net>
    To:    "Tesla List" <tesla-at-pupman-dot-com>

instead of mineral oil, try vegetable oil.  fairly close in dielectric
value, and cheaper and easier to get a hold of.

Hope this helps.



>     To: 
>         tesla-at-pupman-dot-com
> I'm about to start building some rolled poly caps, and have a question
> about sourcing materials.  .09" thick polyethelene is not commonly
> available, but .006" thick is.  Is it reasonable to use 16 layers of
> this
> thin stuff, or would this many layers be totally unwieldy?  
> I don't have access to a vacuum pump to pump the cap down to remove air 
> bubbles.  Would the multi thin layers pose a greater problem in
> harboring
> air bubbles?
> Also, for the mineral oil, what kind of place does one go to for this?
> Auto supply store?
> Gary Lau
> Waltham, MA