• 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.

Any 9- pin rectifier tubes with separate cathodes?

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Eli Duttman

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Joined 2004
I'll just use hybrid bridge per channel.
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Why spend more than is technically necessary. ;) A single pair of Schottky diodes will be more than sufficient to provide the connections to ground for both channels. Separate 6CA4s (1/ channel) very effectively isolate the 2 amp sections from each other. Each channel will have 150 mA. of DC available to it. That's plenty for PP AB1 EL84 "finals".
 
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