[Elecraft] K2 problem with SSB transmit

Gary Krause n7hts at bresnan.net
Wed Feb 13 09:15:43 EST 2008


Thanks Don.  I'm glad to hear that it's a classic symptom.  Checking the 
soldering was the first thing I was planning to do.
Thanks,
Gary N7HTS

Don Wilhelm wrote:
> Gary,
>
> That is the classic symptom of a poor soldered (or unsoldered) 
> connection.
> If you can get it to fail (and keep it in a failing state), then you 
> can troubleshoot it, but if not, take a critical look at all the 
> soldering on the KSB2 board and reflow anything that looks like a bad 
> solder connection.
>
> If you see a rounded mound of solder on any connection, that is a 
> suspect joint.  A mound of solder will mask a bad connection - and the 
> cause is usually that the solder pad did not receive adequate heat 
> during the initial soldering process. The soldering tutorial on the 
> Elecraft Builders Resource page has renderings of good and bad solder 
> joints should you not be familiar with what to look for.
>
> 73,
> Don W3FPR
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