My Legacy crackles
How old is the amp and how hard has it been used? If it has been well used you might try replacing the power tubes, it sounds like they may be getting near the end of their life. "Most" problems with tube amps are, well, tubes, the majority of problems remaining are most likely caps, especially the big filter caps 'cause A) they are big electrolytics and B) they have to contantly deal with very high voltages.
This is "sort of" a generatlization but I think it's pretty close.
Hope this helps,
Roger
How old is the amp and how hard has it been used? If it has been well used you might try replacing the power tubes, it sounds like they may be getting near the end of their life. "Most" problems with tube amps are, well, tubes, the majority of problems remaining are most likely caps, especially the big filter caps 'cause A) they are big electrolytics and B) they have to contantly deal with very high voltages.
This is "sort of" a generatlization but I think it's pretty close.
Hope this helps,
Roger
