[CQ-Contest] CW keying interface

[Dave Hachadorian]

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 
idea.

Dave Hachadorian, K6LL
Big Bear Lake, CA


































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