Mike, are you talking about a K2? If so, check R66 and R69. R66, 2.7k (red-vio-red) is closest to connecter P3 and the edge of the board while R69, 100k (brn-blk-yel) is farthest from the edge of the board.
If they are reversed, the RF detector will work, sort of, but the readings well be very unstable. Ron AC7AC -----Original Message----- Well, just go through the final assembly tests and started the alignment testing. I was feeling good when all the resistance checks were good. But then I did the 40m transmitter test, per the book. When I set the power out to 2.0 watts, then hit the TUNE button, I got wildly varying output readings. The output varied constantly and quickly from about 2 - 8 watts. This was at a supply voltage of 14 volts. At 12v, it varied from 2-6 watts. When repeating the test, I have seen readings varying from 13-18 watts! And again, this is varying constantly and quickly, and it never stabilizes. I talked to Elecraft support last night and he suggested that I check the components in the RF output detector stage. I did that and did not find anything. The components were the right ones, oriented correctly, and I reheated all the solder joints. I did not take any of the resistors out of circuit to measure them. I sent Elecraft an email late last night on the results of what they suggested and am waiting for a reply, but thought in the meantime I would see if any of you have experienced the same thing. I have gotten good feedback from this group already! I also found that if I set the output power to a lower level, like .5w, the test was fine. I could gradually increase this setting, with good test results, until I get to about 1.2 - 1.4 watts. Somewhere in that range I start to get the wild readings. So thanks again, Mike, NJ2OM _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
