I think I have resolved the issue.? I noticed there was oscillation on the 3.3v line on the DDS.? I added a 10uf electrolytic cap to the 3R3V pad above DDS R9 and ground to stabilize the voltage.? That seems to have done the trick.? I'm able to spin the dial with no issues.? I should probably replace the MAIN C1802 cap next but I can't find an identical part.
73,
Bill N6HA
