Attached is a schematics of DC Choke-assisted Mu-stage (as far as I know).
As I DIY novice, I would like to know whether this stage can be further improved by replacing the resistor Rk (at the tail of the pentode CF) by a current sink (triode) as shown. If yes, what're the areas of improvement? Lower output impedance? Better linearity in the pentode CF?
Any idea/advice is appreciated. Thanks in advance.
As I DIY novice, I would like to know whether this stage can be further improved by replacing the resistor Rk (at the tail of the pentode CF) by a current sink (triode) as shown. If yes, what're the areas of improvement? Lower output impedance? Better linearity in the pentode CF?
Any idea/advice is appreciated. Thanks in advance.
The bottom resistor won't change much, you'd be better off doing that to the screen resistor which might be in the range of oh, 10-100k. Unless your sink resistor is supposed to run more current through the pentode, then yes, you can use a CCS as well.
Tim
Tim
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