I also have a set of quicksilver mid mono and have lost a tube before. You described my experience to a t. For what it's worth I was running mine with kt120 for a long time until I decided to try the el34 which as I understand the amps were voiced for. My humble opinion is that JJ stands for junk junk. JJ tubes are the only brand that I have bought that were bad out of the box and I have an audio buddy who's experience has been the same. I run my mid mono with Tung Sol and could not be more pleased. I am not sure what they are getting for those tubes now after the embargo but I seem to remember not paying a lot of money for them. I hope this was helpful.
Is this describing a blown tube, or two blow tubes?
I installed a new set of JJ e34’s a few days ago. Last night there was a very loud POP and one of the tube went bright so I moved quickly and turned of the midmonos.
After they cooled I inspected the tubes and they seemed fine so I reinstalled them thinking maybe it was some kind of impurity within the tube. I’ve never experienced a blown tube before.
The amps ran great this evening until just now, and another POP and bright tube, but it seemed like it was the other tube, but I can’t be sure. This was followed by a low whistle or hum and I turned the amps off again.
Is this simply a run of the mill faulty tube? Could two blow in one day, or could the first one POP like that and then continue to work for another day?
Since Ive never experienced a tube fail before, could this have anything to do with the Amp, or is it just a bad tube or tubes?
Should I worry about putting my old tube back in?
Thank you,
TD