[TenTec] CW Audio Filter

NJ0IP Rick at DJ0IP.de
Mon Nov 22 15:53:47 EST 2004


Hi Joe,

I found the schematic of the model 224 Audio Filter for the Argosy.
It is a 4-pole filter with two bandwidths.
It looks to be the similar or same as the one I had in my 509 25 years
ago.
Unfortunately I can't find that schematic.

Perhaps someone else here can confirm if these two are the same or
different (other than the 3rd tap which you could add yourself).

If so, I can send you the schematic.

73
Rick 


-----Original Message-----
From: tentec-bounces at contesting.com
[mailto:tentec-bounces at contesting.com] On Behalf Of Wj5mh at aol.com
Sent: Montag, 22. November 2004 14:43
To: tentec at contesting.com
Subject: [TenTec] CW Audio Filter

Need schematic for Ten-Tec 3 position CW audio filter for Triton or 509.

Read that it was the same as the Vectronics CW filter, but I traced my
circuit 
out and it isn't.  It's very close, but no match.

Thanks,
Joe
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