Re: MMC or Maxwell? Which is better?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Bert Hickman <bert.hickman-at-aquila-dot-net> 

Ken,

The dielectric system was polypropylene film and kraft paper immersed in  a 
fairly aromatic dielectric fluid. The kraft paper was apparently used to 
facilitate wicking of dielectric fluid inside the capacitor rolls during 
manufacture.

-- Bert --

Tesla list wrote:

>Original poster: "Crow Leader" <tesla-at-lists.symmetric-dot-net>
>Interesting pics, as you can see from the first few pics and clearly in the
>xray image, these caps are really 8 sections in series, two sections per
>"pack". Such a case (PVC pipe) seems sort of iffy if you're going to
>experience a fault. All it can do is pop the ends off and spew junk
>everywhere. There is no room for expansion, or places to bulge, like in a
>metal can or more flexible plastic case. Do you know what the dielectric and
>impregnant were? I see the foil and kraft paper, but obviously cannot tell
>more from the pics.
>
>----- Original Message -----
>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: <tesla-at-pupman-dot-com>
>Sent: Sunday, February 29, 2004 8:05 PM
>Subject: Re: MMC or Maxwell? Which is better?
>
>  > Original poster: Bert Hickman <bert.hickman-at-aquila-dot-net>
>  >
>  > Hi Terry,
>  >
>  > I had one of these CP caps explode in my lab when testing it for Don
>  > Froula, a local coiling friend, back in 1996. It created a loud bang, and
>a
>  > ball of yellow flame exited, creating one heck of an oily mess to clean up
>  > afterwards. The wife was not amused. The posting and discussion can be
>seen
>  > in the archives from 1996:
>  > http://www.pupman-dot-com/listarchives/1996/october/msg00169.html
>
>Tin alloy sounds about right, High tin solders seem to work on aluminum.
>I've seen these connections fail in other caps before, even with sturdy
>looking connections, and low currents. Using normal 60/40 on aluminum is an
>interesting soldering project of you're ever bored.
>KEN
>
>.