That's something I would ask Conrad Johnson. From what I've read, there may be some concerns with the KT150 and their newer amps. I think caution should definitely be exercised in their older amps.
KT 150 FOR CJ MV60SE
HI, I have CJ - MV 60 SE , what do you think if I want to put the new tube
KT150 ? and if ok, do I have to do any adjustment? Thanks. Sean
KT150 ? and if ok, do I have to do any adjustment? Thanks. Sean