milin_im
Active member
Hello guys,
I've been having problems with the lead channel output in my Mark IV-B. I had the levels between RHY 1 and the Lead channel matched pretty good, but the other day I had to unplug everything, and when I plugged all the things again, the lead channel was way too loud. I was using the amp in pentode, simulclass, harmonics and full power, with the lead master around 3 and the output about 1.5 - 2, depending how loud I wanted to play, but now I can't increase the lead master to 3, and I have to keep the output at about 1.1 - 1.2, and have to play in tweed power at max, and it is a lot louder than before.
I also noticed that the mid gain/harmonic switch is not working. I could definitely hear a difference in gain and volume before when switching from harmonics to mid gain, but now I don't. I don't know if this could be related to the lead output problem.
The tubes are practically new.
Any ideas?
I've been having problems with the lead channel output in my Mark IV-B. I had the levels between RHY 1 and the Lead channel matched pretty good, but the other day I had to unplug everything, and when I plugged all the things again, the lead channel was way too loud. I was using the amp in pentode, simulclass, harmonics and full power, with the lead master around 3 and the output about 1.5 - 2, depending how loud I wanted to play, but now I can't increase the lead master to 3, and I have to keep the output at about 1.1 - 1.2, and have to play in tweed power at max, and it is a lot louder than before.
I also noticed that the mid gain/harmonic switch is not working. I could definitely hear a difference in gain and volume before when switching from harmonics to mid gain, but now I don't. I don't know if this could be related to the lead output problem.
The tubes are practically new.
Any ideas?
