[Elecraft] K2 Impact of installing wrong capacitor

Paul Huff phuff at mi.rr.com
Sun Mar 14 14:16:35 EDT 2010


As I worked today on adding more parts to RF board of my K2 I discovered that 
quite some time ago I had installed a 22 uF electrolytic at C111 instead of the 
correct 2.2 uF.  The wrong part was easily removed and installed in it's correct 
place as C125, and the 2.2 uF was put in at C111.

Here is my question...  Since the wrong part was in place while I did the Part 
II testing and alignment (PLL, BFO, etc.) will these alignment settings need to 
be redone now that the correct value is in place?  During the alignment 
everything seemed to go exactly as specified.  The schematic shows C111 (along 
with Q23 and R113) has something to do with the signals to and from the control 
board marked 8T and 8R.  I think that 8T and 8R have something to do with T/R 
switching so I am probably OK on this but I thought that I would play it safe 
and ask the experts.

Thanks in advance for any input that you might have!

73,
Paul - N8XMS



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