Thanks to all that helped me with this 20m loss of T/R issue...
My final solution (after this groups' help and much schematic study and
rumination) was to remove K1 relay and replace it. THIS IS NOT EASY amd I
almost sent it to Elecraft Tech support....
First You need to remove the capacitor soldered across K1 relay pins 2 and
Then take a pair of side cutters and cut (and crunch) the relay down to
the
circuit board (carefully!).
Then take a desoldering tool - and without melting any of the very close
adjacent components like transistors,pots and several caps, melt, section
and suction away K1 and remove the remaining leads and solder...
NOTE: Removing K1 is made more difficult because I was talked into using
63/37 solder ("it is the industry standard" HUMBUG!)and not my old favorate
(and hard to find) 60/40 which stays plyable and workable longer. (this
reworkability is a big advantage, I have now discovered, to using 60/45)
Well I replace K1 and the jumpered cap and that was the problem. The board
survived; the rig works great; I got a few more gray hairs!!!
Thank you all again for the guidance and suggestions......
NOW to build the KX-1 antenna tuner
73 DE Ken K1UM
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