Don, as allways - ? - you were right!
I increased the temp to 430deg C and here I go. (Didn't know my iron could go beyond 400, I mostly use 300-330 without problem.) It still takes a bit longer to solder but the hole fills smoothly. Off the hook - the building can go on. :-) Regarding manual: I read the part with the needed iron but I understood the high power is needed for power transistor installation and such... And since everything else worked the way I did it before... Thank you very much! Gerhard Schwanz DH3FAW mailto:[EMAIL PROTECTED] http://www.gs-personal.de ----- Original Message ----- From: "W3FPR - Don Wilhelm" <[EMAIL PROTECTED]> To: "Gerhard Schwanz" <[EMAIL PROTECTED]>; <elecraft@mailman.qth.net> Sent: Friday, January 28, 2005 3:40 PM Subject: Re: [Elecraft] Bad KPA100 PCB? > Gerhard, > > I have found the KPA100 is more difficult to solder than other Elecraft > kits, but I believe it is bacause that PC board uses thicker copper than > the other kits and is especially noticable when soldering to a grounded pad. > > I increase the temperature on my soldering station to 750 to 800 degrees F. > (400 to 430 degrees C.) and have no problem. The KPA100 manual states that > a low wattage 800 degree F. soldering iron is required. > > Try increasing the temperature of your iron. Judging by your photo, I can > definitely state that your iron is not hot enough, and the pads that give > you the most trouble are the ground points. > > 73, > Don W3FPR > > ----- Original Message ----- > > I am just in the process of building my KPA100. And I discover more and more > solder points on the PCB where the solder is not accepted. Scraping the pads > a bit helps a bit but I don't think this is a solution. > > Some details. I don't know where in the process it started but right now I'm > on page 15 soldering the capacitors. And it's nearly every third hole that > doesn't work. The solder sticks to the leads or the iron. > > I use the same iron and solder as with the other 10 PCBs of elecraft that I > have built. > > I contacted elecraft about this issue but I wanted to ask if others have > this problem too? What can I do? > > 73 > > Gerhard Schwanz > DH3FAW > mailto:[EMAIL PROTECTED] > http://www.gs-personal.de > > > _______________________________________________ > 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 > > _______________________________________________ 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
