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

First, the 12BZ7 was recommended-- by me! The pros and cons and the need
to drive into less efficient (and less costly) wiring, etc., for Jeff's new lower-cost build meant that a bit of extra driver power was needed for this less expensive build-- not for what I do in my more expensive build where everything must be as perfect as possible..

The 12BZ7 is controversial in that it's not perfectly linear on paper. It's good for Jeff's application because it has a high amp-factor and will in addition provide some extra current needed to drive less efficient wiring in the build. The linearity problem is NOT really a problem. The 12BZ7 can be run where it will easily be linear enough for its intended application.

With that said, Jeff is the final decider for his amps-- not me!

There you go-- more than one way to skin a different Cat.


Edits: 03/01/17 03/01/17

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