• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

UL Feedback

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d1983

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Joined 2007
I was curious as to what level of feedback UL offers for a 40-43% tap. With this vaule would it be possible to design a PP stage on paper in pentode mode and then apply the appropriate feedback?
Otherwise, what would be the best approach to getting some ballpark operating points for UL with no UL curves?
 
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