• 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.

Ultra-Linear vs. Pentode Longevity

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gingertube

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Joined 2004
The Menno Bias boards I got looked a little like that posted schematic but was actually more like this:


4 channels of that plus the bias power supply.
Cheers,
Ian
 

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