Deisel401
Well-known member
Hey there. ; } . I've been searching all threads for almost a full day trying to find the thread(s) explaining the purpose of the 3 preamp tubes INSIDE my MTS RM20. I know the p.t. closest to the power tubes is the P.I. Forgot what the other 2 are. And I'm going to experiment with a few different tubes. Thanks. :roll: