Would There Be A Problem 12AT7 Driver Tube In A Fender Super Champ X2?

[Jeffblue]

I am hoping someone knows if I replace the 12AX7 driver tube for a 12AT7 in my SCX2 without damage? Will the power transformer hold up? Thanks.

[Lake Placid Blues]

Re: Would There Be A Problem 12AT7 Driver Tube In A Fender Super Champ X2?

Should be no problem. 12AT7s and 12AX7s are often swapped back and forth as PIs in tube amps. 12AT7s give more headroom to a tube power amp, while 12AX7s give a bit more drive. Basically 12AX7s for Tweeds and Marshalls, and 12AT7s for Blackfaces historically.