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Hoffman Amps Forum image Author Topic: 6AU8 for PP and PI  (Read 1815 times)

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Offline scstill

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6AU8 for PP and PI
« on: January 09, 2024, 12:10:33 pm »
Thinking of a experimenting with two 6AU8a configured in push pull and long tail
Each tube has a sharp pentode and triode

Spec says keep impedance low on pentode cathode to reduce cross coupling (how low?)
Thinking if I run grid around -1v could get gm (gain?) close to el84
Triode has gain of a 12ay7

What do you think? anyone do this before?

Offline tubenit

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Re: 6AU8 for PP and PI
« Reply #1 on: January 10, 2024, 04:42:26 pm »
You might want to take a look at the ideas here:   Low watt p/p amp gallery (el34world.com)


With respect, Tubenit

 


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