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RE: Yes - let's define filament bias

Honest observations, but cathode bias CAN be done right.

This does avoid installing chips designed by geniuses.

It's no longer a tube amplifier if solid state devices
are used in the amp, it's a hybrid.

Sonically, I prefer the sound of a vacuum tube acting
alone-- with no devices or control devices attached to
it, even if that's another vacuum tube.

The good thing about cathode bias is that you're using
only passive devices on the cathode. The "bad"
(as in expensive) thing about it is that it
requires multiples of expensive caps, no one cap
can even begin to work at the highest audio performance
levels. Also, the cathode resistor had better be the
world's best resistor. (Tiny audio currents thru the
resistor not withstanding).

I appreciate your comments and I always enjoy learning
from other worlds.

-Dennis-


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