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RE: Power Tube bias settling time ?

I'm going to answer the question on a slightly different level. With my VTL MB-450s each having eight 6550C outputs, I wait at least four hours before setting bias. I have noticed gradual changes in bias setting over that period of time and wait until the amp has full settled before making any changes.

Once set when fully warmed up, I don't notice day to day variations.


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  • RE: Power Tube bias settling time ? - E-Stat 14:38:44 11/05/14 (0)

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