• 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.

6C33C-B on 8W

Francois G

Paid Member
2004-06-16 8:36 pm
It is recommended to try to work with a half heater (half cathode), which can reduce the heat generation and the anode characteristics are more linear.
Interesting! What about feeding the series connected heaters, say 10-11 volt? Any experience in this regard would be welcome. Also, could you provide more information about your output transformer? What is the winding ratio for CFB?
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