Exercise to set bias (2)





　　In a directly coupled circuit like this, the idling current makes next stage's bias voltage.

　　In a case of J-FET,

　　


　Is it enough with larger Rs? No it isn't.




　It is right to drive from below like this. It is the same as for the tube circuit.
　　
　


　　I don't see circuit like this anywhere.　


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