5881

I have my buddy's MT15 that I have been checking out and love it. I am considering ordering one. However, the new ones come with the 5881's. I am wondering if i for some reason do not care for the 5881's can I swap in 6L6GC's in it or is there more to it than a simple tube swap? Thanks in...

My older MT15 has the factory installed RUBY 6L6GCMSTR (short bottle 6L6) power tubes. Since I've played the MT15 5-10 hours per week for 2.5 years, I'm planning to replace the power tubes soon. I love the sound of the Ruby tubes and clearly they have lasted well, but they are currently/no...