My first thought would be that if re-seating TMP connectors does not do it then possibly one of the 0.1uF decoupling capacitors on the K-REF3 board. Had that on 2 radios now and on one of them twice.

What is the serial number of your K3?
On both of the problem radios I've had this happen almost exactly the same, fine one minute gone the next, both radios were sub 500 S/N's so getting on a bit.

Regards
Martin, HS0ZED


On 22/8/63 18:54, Jim McCook wrote:
Pete, the problem occurs with the K-3 connected directly to a dummy load or various antennas.   Power is read on K3 and Bird wattmeter.
Mike, I'll try reseating all TMP connectors if there is no magic bullet.
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