[R-390] Re: Caps and more caps

[Dallas Lankford]

You are right.  I wouldn't believe you.  Statistics say your claim is
impossible, unless your R-390A was abused, which you say it wasn't.  The
only one of your group that I believe so far is Cecil who admitted his
R-390A with cracked brown beauties was rained on, et al.


----- Original Message -----
From: <N4BUQ at aol.com>
To: <r-390 at mailman.qth.net>
Sent: Wednesday, January 12, 2005 9:33 AM
Subject: Re: [R-390] Re: Caps and more caps


> Well, if I still had the caps (they're residing in the landfill at the
moment), I could send them to you.  But, then again, you might not believe I
took them out of an R390A so it would be pointless.
>
> While I've never met him, I'd like to think Walter is a friend of mine.
>
> Barry(III) - N4BUQ
>
> >What you and Walter have said violates the laws of statistics. That is
why
> >I say I don't believe you.
> >
> >Are you and Walter friends?
> >
> >Dr. Dallas Lankford
> >retired Professor of Mathematics and Statistics
> >Louisiana Tech University
> >
> >----- Original Message -----
> >From: <N4BUQ at aol.com>
> >To: <r-390 at mailman.qth.net>
> >Sent: Wednesday, January 12, 2005 7:29 AM
> >Subject: Re: [R-390] Re: Caps and more caps
> >
> >
> >> Again, I can only concur with Walter. A large percentage of the "brown
> >beauties" in my '56 Motorola had cracks that could easily be seen. I
don't
> >think mine was abused, but just old.
> >>
> >> Barry(III) - N4BUQ
> >>
> >> >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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