Let's be contrarians late in the day.

Yup. If there are safeguards in the amp they could have been responsible for the amp shutting off and
cutting out due to a bad power tube. :idk
 
JiveTurkey said:
Yeah I would want to make sure it can run at full power. If nothing else than just to know one way or another.
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I think we crossed lines somewhere. The amp does run at full power.

I'll probably move some power tubes around between the Express and the TA the next time I have the TA opened up, but I don't have any reason to expect an improvement as a result.
 
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mbenigni said:
I think we crossed lines somewhere. The amp does run at full power.

I'll probably move some power tubes around between the Express and the TA the next time I have the TA opened up, but I don't have any reason to expect an improvement as a result.
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I thought you were still at 15w mode only. Ignore my suggestions if so :rofl
 
TSJMajesty said:
@mbenigni

I'd want that amp right. I'd send it off to Mesa.
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Yeah, this is almost a given; more a question of "when" than "if". The only way it will play out differently is if I speak to a very reputable, Mesa authorized tech nearby, and get good vibes. (Ideally, it would be someone who's already familiar with these TSBs.)
 
FWIW; at least it's not a 79lb Triple Recto that you need to ship out to Cali :oops: :wat:brick :rofl
 
If more Power (30w/40w) is not giving you more Volume than at 15w I am betting it is power tubes on
the outside (V7 and V10).
 
Tube schematic highlights why that could likely be the case.
Screenshot 2023-06-12 at 16-06-11 TA30_121023.pdf.png
 
la szum said:
If more Power (30w/40w) is not giving you more Volume than at 15w I am betting it is power tubes on
the outside (V7 and V10).
Click to expand...
OK, but again, this is *not* the case. I may have said something ambiguous above? I’ve lost track at this point.
 
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