HI everyone, I have a Mesa Boogie 2:90 with noise on the A channel, regardless. It buzzes for a minute or two then clears up and sounds great. Sometimes it will have very low volume for awhile, on both sides, then clears up. I have move the B channel tubes to the A side with the no change. I moved the preamp tubes around and no improvement.
Any ideas what might cause this? All the voltages measure equal on both sides. I love this amp and don't want to give up on it. Please help! Thanks
Any ideas what might cause this? All the voltages measure equal on both sides. I love this amp and don't want to give up on it. Please help! Thanks
