[CQ-Contest] CW equipment question

[Kenneth E. Harker]

I wrote some time back:

>    I've recently acquired a new radio for the N5XU VHF contest
> station.  Unlike our other radios, this one requires manually 
> toggling the PTT line while sending CW.
> 
>     We use a Super CMOS Keyer III for the VHF radios.  I think
> it would be great if I could have the keyer handle a PTT line 
> in addition to the keying line, much like TR Log can do from a
> parallel port CW interface.  The Super CMOS Keyer III does not 
> do this currently.
> 
>    Does anyone have ideas/sources for a circuit I could add to
> the keyer to do this?

Dale KG5U sent me a simple circuit description to do exactly what
I wanted.  I  wired it up on a little corner of perfboard, and 
added it to the keyer.  It works great.  If anyone would like 
the details, let me know.

-- 
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Kenneth E. Harker      "Vox Clamantis in Deserto"      kharker at cs.utexas.edu
University of Texas at Austin                  Amateur Radio Callsign: KM5FA
Department of the Computer Sciences         President, UT Amateur Radio Club
Taylor Hall TAY 2.124               Maintainer of the Linux Laptop Home Page
Austin, TX 78712-1188 USA            http://www.cs.utexas.edu/users/kharker/
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