It isn't a matter of if your K3s will fail, it is a question of when.   The radio's current sense resistor (SMD 1206) is rated at 1/2 watt,  while (depending on options) will dissipate nearly 2 watts at 10 watt transmit.  It took several years but my resistor drifted from 0.05 ohms up to 0.068 ohms triggering HI CUR errors whenever I turned on the sub receiver.  I am glad it didn't unsolder itself.   I did this write up on the web.

http://k9jm.com/K3sCurrent/ElecraftHiCur.html

Note:  The original K3 has a higher wattage current sense resistor and should be fine.... they cheapen the K3s

73 de

Jim K9JM

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