Just a thought...I seem to recall that there was some info
on a list about Cantenna oil that was posted long ago....
there were some recommendations for a type of automotive
transmission oil as a good substitute for the
original transformer oil. Google for more complete info..
73,
Charlie, N0TT
On Sun, 29 Nov 2015 12:32:52 -0800 Jim Lux <jimlux@earthlink.net> writes:
> On 11/29/15 12:01 PM, Jim Lux wrote:
> > On 11/29/15 11:19 AM, Joe Subich, W4TV wrote:
> >>
> >> Check the properties of peanut oil before you use it. I can't
> quickly
> >> find the breakdown voltage for peanut oil ... dielectric constant
> is
> >> slightly higher (3 vs. 2.2) and dissipation factory almost 10
> times that
> >> of mineral oil but it may not be an issue in this application.
> >>
> >
> >
> > In these things, the electrical properties are almost immaterial.
> It's
> > not like a transmission line or capacitor where the permittivity
> or
> > dissipation factor are important.
> >
> >
> >
> >
> >> Some of the literature seems to suggest Canola oil but Soy oil
> seems to
> >> be the base of choice as "eco friendly" replacements for mineral
> oils
> >> (e.g. Envirotemp FR4).
> >
> > Cheap single weight motor oil might be a good alternative. Tesla
> > coilers have used it for insulation (not in capacitors, but for
> oil
> > insulation of HV gear).
> >
> > Straight USP mineral oil is also a good alternative. Available at
> feed
> > stores as an animal laxative in gallon containers.
> >
> >
>
>
> You can also get the real thing (Univolt or Diala, for example), but
>
> generally it's available only in 5 gallon pails, or more commonly,
> 55
> gallon drums. It runs about $5-10/gallon depending on the price of
>
> crude, how long the jobber has had it sitting there, etc.
>
>
>
>
>
>
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