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
