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RE: if 7B4 is the best driver tube for SE DC 2A3 ...

I disagree with you, I do not think the graphs are similar.

But the graphs, and " maximum swing analysis " are NOT the sole reason to use, or discard, any tube. There are other factors one must weigh. The less-linear graphs I see, won't stop me in my intended use of the tube, one time in my audio chain.

In what gear were you employing the tube, preamp or amp, may I ask you ??

How many stages, one, or more in series??

Aside from microphonics, how did it compare to a 12AX7 sonically-speaking, in your circuit, and from your direct experience ??

Thanks in advance.

Jeff Medwin


Jeff Medwin

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