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Okay so Bob tells me my mesa .50 caliber + 112 combo is fixed bias, and it takes two 6L6's for the power section. I was wondering what is involved if i wanted to change them to EL34's one day, and if i can do it with the fixed bias or with yellow jackets or something...?
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Re: Putting EL34's in a mesa fixed biased for 6L6's....
Have a bias pot installed...Your amp then becomes an adjustable fixed bias amp..Kind of an oxy moron really...Originally posted by Young Angus
JohnAmps: 66 Fender BF Pro Reverb Combo,1973 50 Watt Marshall Head,Marshall 4x12 A/V Cab,Vox ToneLab LE,Vox VTH Valvetronix 120 Head,Vox AD 2x12 Cab,Roland Cube 20X
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Re: Putting EL34's in a mesa fixed biased for 6L6's....
If its a fixed bias amp, then its Not suggested for you to put different tubes than 6L6 type tubes. Contact Mesa and ask them if the amp can handle EL34 or other type tubes after the amp is biased.Originally posted by Young Angus
Some amp cant handle the current drawn by different tubes even if the bias is changed.
DukeComment
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Re: Putting EL34's in a mesa fixed biased for 6L6's....
Some of the mesa's the rectifiers specifically allow you to flip a switch and the you make the change.Comment
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