[Elecraft] External Speaker

Mon Jul 8 13:06:01 2002

Tom
I use an external speaker that doubles as an acoustic filter for cw.

It is a thick plastic drinking glass, with a small circular speaker mounted
inside.
It peaks at 560 Hz, which is just what I like.  It supplements the selective
elements
of the K2, and makes a noticeable reduction in high pitched hiss.

When tuning in my widest bandwidth setting, I can get very close to my
prefered
pitch just by peaking the signal in the speaker.  Then I narrow my cw
filters and fine tune if necessary.

73, Bob N6WG

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Tom
Sent: Sunday, July 07, 2002 2:46 PM
To: [email protected]
Subject: [Elecraft] External Speaker

Hi gang,
  The Hints and Kinks section of the July issue of QST had an article on
building an external speaker.  I was wondering if anyone has any suggestions
on building a speaker for the K2.  I'm not as interested in the box it will
go in as much as the circuit design itself, which you may have used.

Thanks in advance for any ideas you may share.

Tom
McCulloch
WB2QDG
K2 S/N 1103

Friend of Bill W.
   ---  If you are too, drop me a line.

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