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Direct Coupled Choke-assisted Mu-stage

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snoopyma

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Joined 2004
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.
 

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  • mu-stage.pdf
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