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Re: Home brew capacitor
Tesla List wrote:
>
> |> Subject: Re: Home brew capacitor
> |> |Subject: Re: Home brew capacitor
> |> |Subject: Re: Home brew capacitor
> |Subject: Re: Home brew capacitor
> |> Subject: Re: Home brew capacitor
> |> |Subject: Re: Home brew capacitor
> |> |Subject: Re: Home brew capacitor
>
> >From Benson_Barry%PAX5-at-mr.nawcad.navy.milTue Oct 8 21:55:57 1996
> Date: Tue, 08 Oct 1996 06:46:00 -0400 (EDT)
> From: Benson_Barry%PAX5-at-mr.nawcad.navy.mil
> To: tesla-at-poodle.pupman-dot-com
> Subject: Re: Home brew capacitor
>
> There are other types of "inhibited" mineral oil that have their own nasties
> in them. I have had no experience with them, only in the literature.
> On some of our manuals it says not to use askerals (sp) as they may
> dissolve the acrylic parts. Fortunately I have never tried this. On a
> humongous Marx generator that I worked on at the University of Maryland
> the oil got hot in some tanks. When the RG-8 cables were replaced
> the polyethylene had turned to wax! You could strip the wire by hand!
> The power supply that came from hypotronics uses RG-34 polyethylene
> cables in Shell Diala AX oil with no problem.
> Barry
>
<SNIP>
Barry,
Aha!! I'd been assuming that transformer oil=mineral oil. Askarels have
greater solvent action than mineral oils, and until fairly recently were
commonly used in power/distribution transformers and caps. Mineral oil
does NOT seem to present a problem with Plexiglas.
Barry, I think you've solved the case of the dissolving Plexi! Thanks!!
-- Bert --