Deisel401
Well-known member
Finally smartened up and purchased a JJ 5751 per MattFigs advice. This is the 2nd biggest tone change I've experienced in the last 3 or 4 years. The 1st being a Plexi/SL+ module Scott Souter built for me. Most amazing Marshall tones I've ever heard !! Anyway, can't believe how clear and punchy this single tube made my RM20. Totally kicks *** !! Can't imagine the JAN 5751 being significantly "better", but have read a lot of posts that claim it is. I do have a question for all of you about biasing; I bias like everyone else, I assume. All controls at zero. I set my EH EL84's between 19 and 20 ma's. I like it a bit hot. After letting the tubes stabilize for 15 or 20 minutes,I set all knobs to taste and play loud and quiet while watching my Multimeter. I'm seeing the bias fluctuate between 19ma, and up to 50 or 60 ma's. Is this normal, or an indicator that something is wrong?