• 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.

6N1P-EV Pre-amp for MoFo

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Bonjour,

If you want to use 200 V instead of 300 V and you want to still have about 10 mA of current, you just need to reduce the anode (or plate in English ?) resistor from 33k to 22k 🙂

Or you can keep the 33k resistor and you will have about 7 mA !

Rgds,
Marc
 
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