[Elecraft] K3 Audio Upgrade Mod

[Roy Morris]

I do not think anyone opting to make the short procedure has anything to worry about regarding putting pressure on the PC board when mounting the RFC 47.  This choke is mounted between the thru-hole on the 12V trace and the pigtail through the solder pad for the original RFC on top of the board.  Again, if your K3 has the KRX3 installed, it is best to use the short procedure to avoid a possible problem with ESD.   Previously, I had an occasion to remove my KRX3 to reposition my TMP cables so they would not be squeezed between the top of the filters and the bottom of the KRX3 case.   I used a properly grounded wrist strap and work surface and still encountered an apparent ESD problem.  Roy Morris  W4WFB
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