chameleon2112
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- Feb 28, 2009
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I ran across some Mesa 12ax7 tubes that were lying around in my closet and decide to swap them with the JJ ECC83S tubes in my Ultra module. What a difference! This module just opened right up, had more growl, and the harmonics lept out. I seem to remember reading that the JJ's were a darker tube, but compared to the Mesa's they were kind of mushy and lifeless.
So what do those of you that have done tube swaps in the Ultra and other high gain modules use and how were your results?
So what do those of you that have done tube swaps in the Ultra and other high gain modules use and how were your results?