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Original Message
RE: Bias on Manley Snappers
Posted by neolith on February 16, 2017 at 08:44:18:
12AX7 are not "drop-in" substitutes for the 12AT7 - they have different gains and other tube characteristics. Similar tubes to the 12AT7 are the 6201, ECC81. and 6679. Not any experience here but I believe they are very similar with just different nomenclature. BTW that is in the manual.