[Hallicrafters] Paper cap substitutes on 50 kHz if Hallis?

[kwylow zinjanthropus]

All:
Even though I brought up this article about the caps, I'm in complete agreement that the paper caps should be changed out regardless. Catastropic failure has happened to me with just such capacitors more than once and if anything, I'd rather change out the cap and risk a mismatch (if any) than frying a valuable transformer or other like component. Cal, N6KYR

Jack Schrader <w1jhs at midmaine.com> wrote:
I too would like to see comments as I changed all of the Tiny Chief caps in
my 101 and it seems to work just fine.

Jack w1jhs
----- Original Message -----
From: "kwylow zinjanthropus" 
To: 
Sent: Tuesday, May 13, 2003 8:35 PM
Subject: [Hallicrafters] Paper cap substitutes on 50 kHz if Hallis?


> All:
> I read something of interest recently on Electric Radio.It concerns us
changing the paper caps out on 50Kc if Hallicrafters Radios (SX-100, 101,
111, etc) with the newer plastic ones we see in various places like Antique
ES.
> FYI, the old paper caps were described in the article as being more of an
RLC combo rather than just a plain old cap and the engineers literally had
to incorporated those characteristics into the receiver. The newer caps were
far closer to an ideal C than the older stuff so say a .01uF cap in the old
days would have some inductance and resistance inherent in it's design while
the new mylar caps would be closer to the .01uF without any significant L or
R. Apparently, changing out to the new caps can have a negative effect on
those aforementioned rx's. Anyone care to comment on this? Thanks. Cal,
N6KYR.
>
>
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