Anyone want to lend a hand here. Used this king for 5 years of 75 and 40 meters. Today, I loaded it up on 15 meters. Big hum on signal. Traced it to the VFO/exciter. I can hear/see the hum on the FT101EE/IF scope sitting next to the king when I tune into the VFO signal.
I loaded the king back on 40 meters where its been for years, No hum. Dead silent full power.
Here is the schematic. I hope I dont have to go inside the VFO. Its hot braised to the chassis and a royal PITA to get inside.
Guess I am stuck at 20 watts from the FT101EE on 15 for now. Thinking of bringing in at least a ranger
C