Ron, I built up one of the first new KPA100 kits and had no problem with loose RF chokes as you describe - I just checked it and the cores are tight. Yes, the mounting holes are wide-spaced, but the leads can still be snugged down so the cores do not move - a gentle tug with the pliers while soldering is sufficient.
If one is a 'real purist' and insists that the toroids line up squarely with the silkscreening on the board, then yes, the leads will have to be a bit loose, but there is no real need to 'square-up' the toroids, and for the sake of longevity, it is better just to snug the leads and let the cores twist where they may. 73, Don W3FPR > -----Original Message----- > Hi > I have just finished making a K2/100 for a friend here, and I notice > that the KPA100 is now up to REV D-1 ( Sept 28 2006) and has a quite few > changes in it. > Amongst them is the addition of two new toroidal RF chokes that > are filled > with #26 wire and because they are so full, the mounting holes on > the (Rev > B) board are a bit far apart to be able to pull them down tight. I was a > bit alarmed at having a choke this size dangling upside down on flimsy > wires ( when in the K2) that I have broken the Elecraft Golden Rule and > used a small amount of non-acidic RTV under each choke to hold it > in place. > ( I guess the Warranty just expired after admitting that!) > I wonder if any other recent constructors have had the same > concern for the > mechanical stability of these components? > Among the changes I see the pesky RFC10 on the antenna socket has > disappeared! > Cheers.....Ron ZL1TW > _______________________________________________ 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
