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htg said:Somehow no one has a good explanation how it works, so I think it is suspicious.
Smells like ignorance.Somehow no one has a good explanation how it works, so I think it is suspicious.
htg said:It is not the grid-cathode voltage that matters. If the potential of the grid is constant, then varying the cathode potential will slightly change the cathode-anode voltage, but I do not see why this setup would make a useful amplifier.
htg said:What you say seems to confirm my suspicion that it is the non-linear characteristic of the anode current vs anode-cathode voltage that makes it an amplifier.
htg said:By the way, what is dB/dB supposed to mean in the graph in your last link?
htg said:I still find it strange. Clearly it is easier to change the potential of an ungrounded grid, than to change the potential of the cathode.
I still do not understand why grouded grid would be superior.