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
Gary Krause wrote:
I've noticed lately that my K2 will stop transmitting on SSB after a
short period of time. It has happened before. If I turn it off and
let it sit a while, it will work fine again. It seems to me that
perhaps it is some kind of thermal problem. I haven't had a chance to
look at it yet but, if anyone else has had this problem and knows what
to look for, I would appreciate it. My K2 is the 10 watt version. CW
works great with no problems.
Thanks,
Gary N7HTS
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
