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

Good observations. For preamp use, Low-Noise tubes
are chosen. Anything special about "low noise" tubes?

The plates are shorter! The less area, the lower the microphonics.
(and incidentally, the lesser the musical dynamics-- if all else is equal).

I'll be leaving operating points to the user of any tube-- it's
his amp, not mine....

I love tubes that have a large surface area and low operating currents, and low thermal stress levels.

Lots of dynamics VS distortion levels. Of course, all tubes are
microphones in one way or the other. As always-- there are degrees of trade-off.

Thanks for pointing out your observations to all of us!

-Dennis-



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  • RE: if 7B4 is the best driver tube for SE DC 2A3 ... - tube wrangler 22:54:33 03/01/17 (0)

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