Is the connector on the K-2 end of your power cable an original Elecraft connector?...If it is an after market replacement, the outer sleeve, which is power supply ground, might not be the right diameter and is not making contact with the wiper type ground contact inside J-3, the 12 volt input power connector on the K-2...There is a wide variety of after market connectors in a wider variety of sizes...
Jerry, wa2dkg
>>I did discover a perplexing issue that I can't seem to resolve. If the
antenna is not connected to the rig, the rig does not power up at all. I
hooked the K1 to a dummy load to accomplish the "fine tuning", and the same
thing happened. Curious, I hooked it up to a coaxial switch, with one lead
going to the dummy load and the other to the antenna. When I turned the
switch to the dummy load, the rig shut down. I turned it off, switched the
lead to the antenna, and no problem whatsoever. <<
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