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Original Message
RE: I know I have been tough on 12ax7 but.......
Posted by unclestu on January 28, 2011 at 11:23:15:
Again it should be noted that 5751's have a slightly lower amplification factor in comparison to a 12AX7. Not surprising you lose a little in dynamics. IIRC 5751's were developed in order to compete with the European ECC83 which had better control of the signal.
Stu