[Top] [All Lists]

Re: [TenTec] Zero beating aids?

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Zero beating aids?
From: Bill Kelley <paver@bellsouth.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 28 Jun 2005 23:09:05 -0400
List-post: <mailto:tentec@contesting.com>
Dale Saukerson wrote:

>Way back about 1978 or so....I built a couple of different circuits 
>from either QST or 73.
>One was a simple audio filter tuned to 750 Hz. A LED would indicated 
>a received tone equal to 750 hz.
>The other was an audio frequency generator set to 750 Hz. You would 
>audibly beat that against a received tone. If the tones matched, you 
>had only one tone to listen to. If they did not match, you would get 
>both sum and diff and an audible warbling.
>I know I used them with my HW-101. Don't remember if I used them with 
>my Corsair or '745.
>Any of you remember something like this? (I no longer have my 
>archived magazines).
>They were probably OP-Amp circuits.
>Dale Saukerson
>Ex, soon again, N0AOZ
>TenTec mailing list
Hi Dale, try www.n0ss.net
I just built one, and it works great.

Bill ab4kh
TenTec mailing list

<Prev in Thread] Current Thread [Next in Thread>