My Mark V head started wiggin out yesterday. I am hoping it is a power tube. I called Mesa but they aren't open on Friday.
When it is switched off of standby, the amp starts making this staticy, buzzing, arcing sound, and the V9 tube glows a flashing brighter blue.
At that point, I switch immediately back to standby.
It sees to do it the most on channel 1, and doesn't matter if it is set to the 90, 45, or 10 watt setting.
I took it apart and inspected it. Everything looks good and all the tubes are fully seated and tight.
I had noticed for some time, every once in a while when I turned it on it would do a quick little blue flash, but it always seemed to be Ok.
What do you think?
Any help is much appreciated! Thanks, John
When it is switched off of standby, the amp starts making this staticy, buzzing, arcing sound, and the V9 tube glows a flashing brighter blue.
At that point, I switch immediately back to standby.
It sees to do it the most on channel 1, and doesn't matter if it is set to the 90, 45, or 10 watt setting.
I took it apart and inspected it. Everything looks good and all the tubes are fully seated and tight.
I had noticed for some time, every once in a while when I turned it on it would do a quick little blue flash, but it always seemed to be Ok.
What do you think?
Any help is much appreciated! Thanks, John
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