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Re: CCS and high plate R vs CCS etc the why is it ...

Hi William,

1. The gain of the tube is equal to its mu for all practical purposes.

2. No

3. The constant current is shared between the tube and the load. As the tube decreases its conductance, its plate voltage rises and the current through the load increases. This is a simplification of the basic CCS operation but is a good place to start.

4. Again, the gain is equal to mu. The high impedance in the tail keeps any signal current from flowing through the power supply.

Dave


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