Don, Thanks for the tips. I did check the parts, they were/are correct. I am ashamed to admit (as a former quality control inspector of circuit boards) that I missed an unsoldered relay pin, on the 40 meter low pass filter relay I think it was, one pin on the end was not soldered.
15 meters now does full power at just under 3 amps. When I had the problem and was testing, I had put the current limit up to 3.5 amps, and the rig would trip the self resetting fuse inside, I thought it was rated for 3 amps??? Not sure if it was the fuse or something else, but the rig would do a quick reset... Anyway, the rig now seems to work fine in every respect, the receive seems better than 6065 was, no missing parts, a very nice kit indeed! I just ordered the antenna tuner and ssb option, the high power tuner and 100 watt amp comes later. Brett N2DTS ---- Original Message ----- From: "Don Wilhelm" <[email protected]> To: "Brett Gazdzinski" <[email protected]> Cc: <[email protected]> Sent: Thursday, January 22, 2009 1:01 AM Subject: Re: [Elecraft] K2 high current on 15 meters > Brett, > > Check the components in the 15/17 m Low Pass Filter carefully. Examine > C218, C219, C220, C221 and C222 for correct values. Then count the number > of turns on L23 and L24. Count the number of times the wire passes > through the center of the core rather than the turns around the outside. > > Go ahead and set the CAL CUR to 3.50 amps. If you add the KPA100, you > must increase the setting to 3.50, and with the higher gain using the new > transistor at Q6 it is often necessary to increase the CAL CUR limit - it > does no harm to increase it. > > 73, > Don W3FPR > > Brett Gazdzinski wrote: >> I built K2 #6673 last week, and everything works well, except for a high >> current warning on 15 meters. The current is set at 3 amps. >> >> Things seem fine up to about 10 watts, above that, the current goes up >> and the power out stays the same. >> >> In doing the initial receiver alignment, 15 and 17 meters did not have a >> peak like the other bands did when adjusting the band pass filters, 17 >> meter power out seems fine. >> >> I checked that the correct components are in the correct places, and have >> the correct values, and that the solder is good, could I have a bad >> relay? >> >> The adjustments for 15 and 17 meters do peak the power output, and not at >> the end of their adjustments... >> >> Not a big issue, but I don't remember 6065 acting that way, I don't think >> I ever got the high current warning on that K2. >> >> Brett >> N2DTS >> >> _______________________________________________ >> 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 >> ------------------------------------------------------------------------ >> >> >> No virus found in this incoming message. >> Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: >> 270.10.10/1906 - Release Date: 1/21/2009 7:07 AM >> >> _______________________________________________ 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
