I have to say that my experience with cj amps is exactly the opposite of Jwm's. I've owned cj amps for over 20 yrs, beginning with the MV75A1 and currently the LP 150 Ms. The amps have been like battleships and have never once had a bad or old tube take out the amplifier.
Once I had a resistor go in a 8 yo MV75A1 and the amp had to go back. That would have held true whether the amp was ss or tube in this case.
Once I had a resistor go in a 8 yo MV75A1 and the amp had to go back. That would have held true whether the amp was ss or tube in this case.