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RE: Do you need PSE ????

Forget 6B4Gs, they require DC on the filaments, which asymmetrically biases the filament.

If the asymmetry of a static 2.5V DC shift in bias from end to end bothers you then how do you explain the good sound of the dynamic 7V shift in bias for the AC heated 2A3?





I prefer AC filaments but unless someone can present a compelling argument, I call the bias shift claim for the inferior sound of DC "bunk" since 60 times a second you have a range of bias shift with AC that is 2.8X that of DC.

dave





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