• 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.

10M45S problem

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scott17

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Joined 2009
Sounds good to me.

I made it so I can switch between the CCS and conventional anode resistor, and also switch between the LED power tube bias and conventional shared RC bias. I can also switch the feedback either on or off.

I realize it's very subjective and I have not technically analyzed the circuit yet for distortion or harmonic content, but I like the CCS, LED power tube bias, and no feedback. Sounds clearer to me.
 
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