Fw: audio filter article for SB 10

[john w. king]

----- Original Message -----
From: "john w. king" <jbkking at bellsouth.net>
To: <Heath at listserrv.tempe.gov>
Sent: Thursday, February 06, 2003 7:45 PM
Subject: audio filter article for SB 10


> I am looking for  a magazine article that described a low pass audio
filter
> for the heath SB 10. It appeared in about 1960 to 1963 but I don't
remember
> whether it was in CQ, QST, or 73. I built the filter in the early 60s for
my
> SB10 and it worked well. It used two TV horizontal lineararity coils and
two
> or four capacitors. I just acquired another SB 10 and want to put the
audio
> mod in it. I have a great library of mags of the era but cant seem to find
> the article.
>
> If you remember the article and know where it was published and when,
please
> advise. Thanks and 73, John, K5PGW
>

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