Jerry, Have you done the KPA100 wattmeter balance (C1 adjustment) followed by the forward power calibration (R26)? If not, the KPA100 may be putting out a lot more power than indicated by the K2. If you do not have a good null on the C1 adjustment, you may as well stop and resolve that problem before attempting to go any further, it is a critical first step. Most likely causes for a failure to null are a problem with T4 or D16, D17 orientation or soldering problems in the area of T4.
73, Don W3FPR n0jrn wrote: > Well, doesn't seem to my weekend. :-) > > While checking the output of the KPA100 ( during test and alignment ) > completed the bias adjustment and began the transmit test. > > Connected to my 100 watt dummy load with short jumpers. Watt meter in line > and checking the output compared to the meter. Started on 40 meters and at > 20 watts all was good. Moved the power up and noted the amp kicked out > around 35 watts. Started checking other bands at 20 watts and found that on > 15 meters, my current draw went way up and my supplied voltage went way > down.up and my supplied voltage went way down. > > ______________________________________________________________ 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
