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Problem solved! What I thought was a tube failure (and 1 tube did fail), was actually dirty contacts. Mesa Rep Chris suggested I jump a patch cable between the fx send and return and lo and behold, Lonestar perfection! I used the amp for a couple of hours at practice Saturday morning and she...

Another "biggie" to extend tube life: don't just unplug and go. Let the amp cool down before moving it.

It's not insane. I run my Lonestar on Ch 1 only. I use a digitech Bad Monkey for distortion (before the amp; not in the loop) and I get killer bluesy/classic rock crunch...BUT... there's 1 advantage of leaving the fx loop engaged and that is the solo boost. I think you'll really want to keep...

I talked w/ Chris last night from Mesa's Customer Service and he conferred w/ one of their techs. The consensus is it's probably not a tube failure but what I'm assuming is a bad tube, is really just some dirty contacts. He said Lonestars should not have a problem w/ New Sensor tubes used in...

Can't hurt! I'll give them a try

Hi All, I have a older Mesa Nomad 55/212 combo amp. It's a great amp but lately, as I'm playing the volume drops steadily. Once, at a gig, it dropped out completely. I replaced the 6L6's w/ brand new ones from Mesa but the problem persists. Could it be the driver tube (if so, are there brands...

Okay Dom, I'm trusting you. I just ordered 2 JJ's (good to have a back up). Now, does anyone know if you need a special tube to act as the PI? Will New sensor brands work or is this something that needs a tube without a spiral filament. I ask b/c it seems now I have a small collection of brand...

What brand do you reccomend seeing how Mesa's tube brand (12ax7) is the rejected EH brand?

So you don't think there's a circuitry issue that blowing these tubes? I'd hate to buy another tube (I've had tremendous success w/ Tung Sol and just bought 4 more 12ax7's) just to see it fry like the others...

I bought a used Lonestar 212 combo that absolutely cranks. The problem I have is that the V3 12ax7 that controls the fx loop (and the ability to select soloing in my footswitch) blows after about 15-30 min.s. I've replaced it a couple of times thinking maybe my spare tubes, being used, weren't...