So, I bought a Marshall Haze 40. It's been taken out of a combo cab, I just have the chassis/amp part, not the cab/speaker.
So, I'm running it into a 1x12 cab. When I turn it on, it hums/buzzes LOUDLY. If i gently tap the pc board it stops, then crackles then starts again. A few minutes later, it's silent and tapping the board does nothing, it stays nice and quiet.
I find this super weird. My other marshal head doesn't need any sort of warm up time, so, I can't imagine this is the case, unless because of all the digital components it's causing issues?
What could be causing this? Bad tubes? Filter caps? Bias problem?
So, I'm running it into a 1x12 cab. When I turn it on, it hums/buzzes LOUDLY. If i gently tap the pc board it stops, then crackles then starts again. A few minutes later, it's silent and tapping the board does nothing, it stays nice and quiet.
I find this super weird. My other marshal head doesn't need any sort of warm up time, so, I can't imagine this is the case, unless because of all the digital components it's causing issues?
What could be causing this? Bad tubes? Filter caps? Bias problem?