Good afternoon everyone, Got a 5e3 build with an annoying buzz. Tried to eliminate all the usual suspects, swapped tubes, reflowed joints, swapped filter caps, swapped v1 coupling caps. Had the standby switch wired in but noticed it took longer than normal to lose sound when it was flipped off. I’ve been around in circles with this buzz and hopefully someone can see what I’m obviously overlooking. Adding a few pictures and closeups of the ground points. I have a pretty good video with sound of the buzz but apparently it’s too large to upload. Thanks in advance for the help.