[Elecraft] SMD Version of the K6XX Visible LED CW Tuning Indicator

Glenn Maclean wa7spy at comcast.net
Tue Nov 2 22:25:57 EST 2004


I received my tuning indicator from Tom Hammond N0SS last week. I put it 
together on Sunday. To my dismay it did not work. I checked and tripled 
checked component placement and wiring. It all looked good. I still could 
not get the tuning indicator to work. Tom and I emailed back and forth. I 
was about ready to send my board to Tom for his evaluation. I got home from 
work tonight and started trouble shooting. I got out my trusty Hakko 808. I 
put the small long tip on it. I cleaned up all the solder off of all the 
components. I then touched up all the solder connections to all of the 
components. I plugged the board back into the K2. What do you know the 10th 
LED now lights up when the tuning is locked on a signal. I can adjust the 
LED to come on and off with the trim pot. If anyone else is having problems 
make sure you have good solder joints! Especially the little legs to the 
very tiny FSK chip which is the heart of the tuning indicator circuit. They 
are hard to see let alone solder. Make sure you have a very small soldering 
tip and you get in and out quickly with the tip so you do not over heat 
components or lift a trace.

Tom did an awesome job with this little project! I hope this may help 
someone else who has or may have problems with this SMD kit.

Thanks,
Glenn Maclean WA7SPY 



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