Re: MMC or Maxwell? Which is better?

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

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