L Lkdog Well-known member Joined Aug 21, 2009 Messages 57 Reaction score 0 Jun 13, 2015 #1 Not sure where to start with trouble shooting. Which tube?
L Lkdog Well-known member Joined Aug 21, 2009 Messages 57 Reaction score 0 Jun 14, 2015 #2 Also having pretty steady crackle, hiss. Looks like the power tube in V7 is bad. I pulled it and the crackle noise stopped. The hum in 10 watt is still present. Have asked Mesa to replace the tube.
Also having pretty steady crackle, hiss. Looks like the power tube in V7 is bad. I pulled it and the crackle noise stopped. The hum in 10 watt is still present. Have asked Mesa to replace the tube.
screamingdaisy Well-known member Joined Jan 24, 2005 Messages 4,512 Reaction score 5 Location South of Heaven Jun 14, 2015 #3 You're running it on one power tube?
