In Reply to: Good point! posted by Dave Cigna on March 18, 2007 at 16:09:55:
What's going on with the usual NFB idea is the output is fed back to *THE* input. In the pentode, the output is fed back to *AN* input. In the triode/pentode case the pentode( taken as a beam tube with beam plates attached to the cathode for simplification ) degenerates from a 4 element device to a 3 element device when the g2 reaches the anode.
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Follow Ups
- But!!! - Try-ode 18:10:53 03/18/07 (5)
- Re: But!!! - Steve O 19:45:39 03/18/07 (4)
- still, But!!! - Try-ode 06:01:05 03/19/07 (3)
- oops... - Try-ode 06:53:30 03/19/07 (2)
- It's not exactly the same.... - Dave Cigna 12:52:37 03/19/07 (1)
- Re: It's not exactly the same.... - Try-ode 15:49:41 03/19/07 (0)