I have recently had my K3 switch modes as I tune up the band. Like from LSB to CW. My s/n is 6000+ though.

Ken WA8JXM


On 8/9/16 10:04 AM, Mark E. Musick wrote:
Your problem is most likely the front panel connectors. This is a known
problem for early K3s. Early K3s had tin connectors between the front panel
and RF board. Elecraft switched to gold connectors around serial #4000. I
just had my serial #3505 in for upgrades and they switched the connectors
while they had it.

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