[TenTec] vague answer to the triton audio filter question

[geoffrey mendelson]

I was looking through a book I bought about 15 years ago that was a  
compilation of QST reviews called "The Arrl Radio Buyer's Sourcebook".  
In it is a copy of the review for the 544. There really was not much  
to say about it, and the review as published in the book, had a full  
schematic of the audio filter and a discussion of components used to  
build it.

If you have access to the QST review, it would pay to read it. If the  
review is different than the one in the book, let me know and I can  
send you a copy.

BTW, it was a simple 4 stage active audio filter, using IC's common 20  
years ago. Almost anything similar would do. For example I used to  
have an MFJ 9020 QRP transceiver with a plug in audio filter. If you  
can get one from MFJ, it would be IMHO a suitable replacement.

The TenTec filter had 4 bandwiths, the MFJ has one, but the 544 only  
used the last, i.e. all four cascaded.

Geoff.
-- 
Geoffrey S. Mendelson,  N3OWJ/4X1GM
To help restaurants, as part of the "stimulus package", everyone must  
order dessert. As part of the socialized health plan, you are  
forbidden to eat it. :-)