Don't forget Don's [W3FPR's] axiom If you have a problem check your solder joints then recheck your solder joints then check them again. >From personal experience those joints with the exception of once were always the problem RC kc5wa --------------------- On Jan 17, 2008 6:27 PM, Ron D'Eau Claire <[EMAIL PROTECTED]> wrote: > Ken, KA0W wrote: > > I should be right behind you with the K2 construction. I wasn't going to do > a K2, but have become brainwashed enough that I finally had to order the box > of parts. > > If you hear any noise to the south of you it will be just me grumping after > I screwed something up because I have no patience when building. > > ------------------------------------------------- > Ha, ha!!! Let's hope they are growls of pleasure, not pain! > > Take a D-E-E-E-P breath and do the build ONE step at a time, and double > check your parts placement before soldering! > > I built my K2 in 2000. It's worked like a champ in spite of being one of the > test machines for many of the "improvements" to the K2 gene pool over the > years. > > Following this reflector since 2000, I've noticed one complaint begin to > turn up among a few owners: intermittent problems! > > In every case that I've followed, the intermittent turned out to be a lead > that was never soldered. Elecraft uses high quality boards with > plated-through holes. A bare, unsoldered lead can hang in one of those holes > for years before enough oxidation builds up or it becomes loose enough to > start losing conductivity. > > So I suggest keeping the three following things in mind as you build: > > 1) All parts have a tendency to jump from one place to another without > warning. After you put R3 in the spot for R3, when you reach for the > soldering iron you may discover that while you looked away it: a) jumped to > another location or b) changed to a different value. Parts tend to do this > more easily as the hours wear on.. > > 2) An unsoldered part remains unsoldered until you solder it, even if it's > years later. > > 3) Intermittents are the worst sort of trouble to locate. > > Ron AC7AC > > > _______________________________________________ > 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 >
-- <http://www.geocities.com/kc5wa> 72/73 DE RC KC5WA Flying Pigs #567 NAQCC #420 NETX #43 SKCC #089 ARCI-QRP #12572 _______________________________________________ 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
