I have talked with Justin and suggested 5u4g with 6L6GC as you mentioned to lower the power and noise floor. (hopefully repeating that properly). Trying to stay away from adapters. I do know that talking with Justin, he mentioned moving to 12AU7 in the future for input driver versus 6SL7. Even though as you’ll read below that I might have found the issue, I still have some 5u4g and 6l6gc coming in to try.
While listening last night, I caught a notification coming in from my cell phone, sitting next to the amp and headphone cable. The static noise was there. What really caught my attention was the noise first, then I saw the notification. I picked up the phone while the notification was active and move it over the tubes and cable to see if I could get additional reaction from it and did continue to get noise while the notification was active. I’m going to keep it away from the amp from now on, see if the static is gone.
@generic and @Polygonhell mentioned the phone and sometimes, since the phone is such a big part of life anymore, you just don’t always think of it.
Thanks again for everyone’s help and thoughts.