I just tried the test for the inductors. With no antenna attached, I read 1.7k ohms from antenna center conductor to ground (tuned 40 meters, then powered off). I am able to read continuity across L25 and L26 though...
I think I can borrow a Fluke meter from a friend which can test capacitors, so I'll try to do that. -- [email protected] (Owen B. Mehegan) 'When I was in sixth grade many years ago, I passed out after gym class one day. When I woke up, I had vivid memories of cartoonish bananas dancing around a red pool of blood, chanting 'E equals MC squared' over and over.' --Poster to ask.metafilter.com On Nov 7, 2010, at 10:07 AM, Don Wilhelm wrote: > Owen, > > That all means that you have a problem with the 40 ,meter low pass > filter.L25, L26,C225, C226, C227, C228, C229 and the contacts of K12 > are all potential suspects that need to be checked. > One quick test would be to set to 40 meters and power off (the > relays are latching types) and measure the resistance between the > center conductor of the antenna jack and ground. If the inductors > have continuity, you should read close to zero ohms. If that is > true, that does not rule the inductors out entirely, but moves them > lower on the suspect list. > > If you have no way to measure the capacitors, I might suggest that > you order all the components listed above and replace all of them - > much less frustration than trying each one at a time. > > 73, > Don W3FPR > > On 11/7/2010 12:12 PM, Owen B. Mehegan wrote: >> Hello Don, thanks for your prompt reply (again - you helped me >> diagnose my misplacement of C6 in the BPF section a couple of weeks >> back). >> >> I do not have the KPA100, just a base K2 with the SSB module added. I >> was using an external Tokyo Hy-Power amp when this mishap occurred. >> >> I've just done the test you described, with a wattmeter and a dummy >> load. It's not as bad as I thought at first - only 40 seems affected. >> No matter what power setting I choose on 40, when I press TUNE the K2 >> shows a high current warning, and then about .4 watts output, and the >> needle on the wattmeter doesn't even flicker. All other bands can put >> out their usual amounts of power with no problems. >> > ______________________________________________________________ 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
