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Re: [TenTec] Replacment cw filter

To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
Subject: Re: [TenTec] Replacment cw filter
From: "Dave Redfearn" <n4elm@bellsouth.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 14 Dec 2010 17:54:40 -0600
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>

For the Argosy, I have built the 224 audio filter circuit, manhattan style,
on a piece of copper clad board and it works very well. 
I also built up one of the NESCAF filter kits without the audio amplifier
stage and that also worked in place of the 224 filter.

The CW audio filter circuit is basically the same in all the older Ten-Tec

Dave Redfearn
ARS N4ELM  Lafayette, LA
QRL? de N4ELM/qrp 


-----Original Message-----
From: Marty Hartwell [mailto:mhartwe@gmail.com] 
Sent: Tuesday, December 14, 2010 8:54 AM
To: Ten Tec
Subject: [TenTec] Replacment cw filter


I have asked in the past if anyone has a 245 filter for the 540 Triton IV
and received no
answers. So I am wondering if anyone in the past has built one on Vector
board or
ugly construction and gotten it to work? I am going to RS and see what might
be available
to try this, it doesn't look to complicated to me.

Marty Hartwell

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