I picked up the TRII a couple years ago and I finally have to replace my power tubes (a bandmate knocked it over while moving it and a couple shattered). As far as I know, there was no bias adjustment knob installed, there were sovtek 6L6's in there and I'd really like to upgrade the power tubes to JJ's, should I have any problems doing this? What would you reccomend?
Thanks in advance.
Bias adjustment is a must .
Not adjustment pot ? A tech could adjust bias with some resistor or installing bias pot.
But one thing is sure you can't install or find tubes without checking bias. Unless you are not worry about a poor sound or shorten tube's life.