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I think the tube is/was ok, but I did end up replacing it (and the others as well). I don't honestly know what the lifespan of a tube is, or if it degrades over time, but I figure the six tubes are 37 years old. I did keep the original tubes (all of them) . As for the stem piece, I removed the...

Good Lord. 11 years later and I find this post after googling "mesa boogie tube broke off in block" because that is what I found when I went to replace the 36 year old tubes in my Mk IIB. I honestly expected "0 results. Would you like some porn instead?" So, now I need to get up the courage to...

Thank you Markedman. I've done as you suggested and I am getting a lot of buzz/hum, it is proportional to the increase in master increase. A little worse in "lead" than "rhythm" mode. The tubes have never been replaced and the amp is at least 37 years old. So I'm looking at new tubes at the...

Hi, I'm trying to get the cleanest sound possible from my setup. I am trying for a folk/classical sound with the least hint of electrification. I play very little rhythm chords (strumming), mostly finger pick. Kind of "Dust in the wind" but on an electric set up. My Boogie MKIIB is currently...

Thank you, MKIIB, I really appreciate it. I did a cleaning on it and *think* I may have located the serial number. There is an "8800" stamped in it. That and the date written (LJ 3/3/82) corresponds to a IIB. But it's nice to have someone in the know. So, thanks again. I had't turned it on for...

I bought it used in the 1990s. It doesn't have reverb or EQ. I think it's a Mark II but I'm not sure. If it is a Mark II, I don't know if it's an A, B or C. I do note the heading over the Master 1 says "Gain Boost" as opposed to "Pull Deep", so I am leaning towards a A or B. It also does have...