I use a simple single transistor keyer in conjunction with the "Auto-Detect" feature as described in the K2 manual to use both the computer and keyer paddle with N1MM. It runs directly off a "native" serial port on an old IBM laptop as well as off a USB to Serial Converter Cable used on a "new" laptop. It works fine on either.

The simple single transistor keyer is described in the Help section of the N1MM program as well as other places. To see a photo of how all this is cabled together you might want to look at my Elecraft photo album at: http://photos.yahoo.com/n4hh
Play the Slideshow for larger photos.   73 -- Don N4HH

<SNIP>
----- Original Message ----- From: "Carter W. Craigie" <[EMAIL PROTECTED]>


I want to be able to do computer-generated CW on my K2, using software such as

Can someone send me, or point me to, a CW keying circuit for a COMM port that will work with the K2?
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