Hello fellow grailtonies. I've had my ED for almost a year with NO problems. Moderate use, @8 to 10 rehearsals/gigs a month
at concert volume, plus a couple hours a week at bedroom volume. All of a sudden I'm hearing some "crackling" noises from the
amp, even when I unplug my guitar and pedal board. Without anything plugged in I tapped each power tube a little so see if it
made a difference, either worse of better but it didn't. Clean (green) mode seems to clear it up, but when I crank it a little its still there, and when I switch to blue it's really apparent. Could it be one of the pre-amp tubes?? If so what is the best way of trouble
shooting it (ie. swapping 12AX7's out individually etc), and if that procedure is recommended, what is the best way to check them out. I have a 1X12 combo, is it o.k. to turn it upside down for easy access to the tubes, or is it better to just put the amp up on a
workbench or something? Or, if you think its' something else, let me know. I've got 2 shows this weekend so I'm stressing a little.
Of course when I'm playing, you don't notice any of the "crackling" noise. I thought it might be some sort of electrical interference
so it tried a plug on the other side of the house, same thing. What I'm really trying to avoid is catastrophic failure during a gig.
Any input is greatly appreciated...I trust you guys.
Rich
at concert volume, plus a couple hours a week at bedroom volume. All of a sudden I'm hearing some "crackling" noises from the
amp, even when I unplug my guitar and pedal board. Without anything plugged in I tapped each power tube a little so see if it
made a difference, either worse of better but it didn't. Clean (green) mode seems to clear it up, but when I crank it a little its still there, and when I switch to blue it's really apparent. Could it be one of the pre-amp tubes?? If so what is the best way of trouble
shooting it (ie. swapping 12AX7's out individually etc), and if that procedure is recommended, what is the best way to check them out. I have a 1X12 combo, is it o.k. to turn it upside down for easy access to the tubes, or is it better to just put the amp up on a
workbench or something? Or, if you think its' something else, let me know. I've got 2 shows this weekend so I'm stressing a little.
Of course when I'm playing, you don't notice any of the "crackling" noise. I thought it might be some sort of electrical interference
so it tried a plug on the other side of the house, same thing. What I'm really trying to avoid is catastrophic failure during a gig.
Any input is greatly appreciated...I trust you guys.
Rich