[R-390] Re: Caps and more caps

[Dallas Lankford]

Walter,

I do not believe you.  The laws of statistics say that if  7out of 10 brown
beauties were cracked (as you claim), then my friend and I would have
observed several hundred cracked brown beauties.  The odds of us seeing none
(which is what we saw) are way beyond 1 in a trillion.

Dr. Dallas Lankford
retired Professor of Mathematics and Statistics
Louisiana Tech University

----- Original Message -----
From: "Walter Wilson" <wewilson at knology.net>
To: "Dallas Lankford" <dallas at bayou.com>; <R-390 at mailman.qth.net>
Sent: Wednesday, January 12, 2005 5:04 AM
Subject: Re: [R-390] Re: Caps and more caps


> Dallas,
> I keep a bag of old capacitors that I've removed from R-390As.  I
> randomly pulled 10 of the brown tubular ones out of the sack this
> morning.  I counted 7 of those with cracks.  While it is certainly true
> that not all capacitors need to be replaced, I'd err on the side of
> replacing too many than too few, especially if it is filled with the
> brown tubulars.
>
> Walter Wilson - KK4DF
>
> Dallas Lankford wrote:
>
> >Perhaps you are shopping at the wrong R-390A store, but it is far more
> >likely that you are mistaken.  I have carefully inspected and rebuilt
> >between 10 and 20 R-390A's, and a good friend of mine has carefully
> >inspected and rebuilt well over 100.  Neither of us have ever found a bad
> >(cracked or otherwise) brown encapsulated paper capacitor in an R-390A.
> >
> >
>
>
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