[Top] [All Lists]

Re: [CQ-Contest] CW keying interface

To: "cq-contest reflector" <cq-contest@contesting.com>
Subject: Re: [CQ-Contest] CW keying interface
From: "Dave Hachadorian" <K6LL@ARRL.net>
Date: Thu, 2 Aug 2007 10:45:23 -0700
List-post: <mailto:cq-contest@contesting.com>
I think I remember N6TR saying that he is now using reed 
relays, such as those available from Radio Shack, for keying 
and other on-off functions. One side of the coil goes to a 
source of 12vdc, and the bottom side of the coil goes to the 
collector of a 2n2222, whose base is driven by the usual 1K 
resistor. A reverse diode across the coil is probably a good 

Dave Hachadorian, K6LL
Big Bear Lake, CA


CQ-Contest mailing list

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