Alan, Physically damaged relay cases are a sign of unreliable relays, Replace them. There is no need to trim the plastic of any relay - it was most likely bitten by a hot soldering iron and then trimmed to remove the melted part. It should have been replaced.
73, Don W3FPR On 7/17/2012 11:10 PM, Alan Jump wrote: > I inherited a KX1 about three weeks ago, and until this afternoon it had > been performing flawlessly on a random-wire antenna and counterpoise. > Today, I was trying to call CQ on 20m, and after running a tuning cycle > and seeing a 1.2:1 match, I started calling CQ as usual. In the middle > of sending a character, the unit "clicked" and the background noise fell > off enough to darken the S-meter bar display. I ran another tune cycle > and saw a 9.9:1 match, but the background noise came back. Yet another > tune cycle and the radio returned to the 1.2:1 match. The displayed > output power didn't vary, showing 1.4 watts. > > I got curious and opened the case. Looking at the tuner board, I saw one > relay (K7) that looked like a corner had been trimmed away. I can't tell > if it was intentionally done by the original builder to afford clearance > with a main-board toroid, or if it was heat damage. I looked through the > documentation I was given along with the radio, and I don't see anything > in the KXAT1 manual that calls for trimming anything for clearance, so > my first instinct is a heat issue. I'll be emailing Parts to obtain a > replacement relay in the morning. > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
