[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Hello



Original poster: "Dr. Adriano Mollica" <adriano.mollica@xxxxxxxxxxx>

Hello all,

I'll be probably able to vacuum remove all the air between the layers of the
rolled capacitors, and fill it up with mineral oil. So i just come up with
another idea, which  is to use copper foils in place of aluminium foils so i
will be able to solder the electrical terminals on them. I'll keep you
informend about my progresses in this matter.

see you!


----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, January 25, 2006 8:20 PM
Subject: Re: Hello


> Original poster: Jared E Dwarshuis <jdwarshui@xxxxxxxxx>
>
> It is yery difficult to exclude all the air between the sheets of
> polyethelene for a rolled capacitor.
>
> If you make your capacitor using a PVC pipe for the housing, then the
> large coeficiant of thermal expansion for the plastic causes all the
> metal fittings to become loose and then they leak endlessly. (oil is
> thinner then water)
>
> I made a nice set of rolled capacitors and they worked great, except
> they leaked. Now they are in the landfill where they can happily leak
> to eternity.
>
> Flat plate capacitors work nicely and you can build them to withstand
> severe service (like 80kv), But finding a really good container to
> stick them in has eluded me.
>
> I like the Maxwell capacitors myself, you can get used ones for a
> reasonable price and will spend about the same amount of money as the
> MMC for similar voltage ratings.
>
> Jared Dwarshuis
>
>
>