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Original Message
Re: 12BZ7
Posted by Mahatma Kane Jeeves on June 20, 2005 at 16:40:22:
They are not interchangeable with 12AX7- same mu, but half the rp, double the gm. Double the heater current, too. And much higher distortion, and high-order distortion it is.
Give them to a guitarist- they don't belong in a hifi system.