Cathode Follower again ;) ...no rocket science!

Since the Cathode Follower model was greatly improved in Quantum Firmware, it is worth mentioning, that there are quite a few scientific papers, which include some approaches to explain a Cathode Follower.

As this one: http://www.diale.org/pdf/AESPaper.pdf

Also in the scientific work of Zollner "Physik der Elektrogitarre", there's also a whole chapter dedicated to the Cathode Follower. But one of the main statements is, as said here before, that it acts as a nonlinear resistance.
 
MaVo said:
Since the Cathode Follower model was greatly improved in Quantum Firmware, it is worth mentioning, that there are quite a few scientific papers, which include some approaches to explain a Cathode Follower.

As this one: http://www.diale.org/pdf/AESPaper.pdf

Also in the scientific work of Zollner "Physik der Elektrogitarre", there's also a whole chapter dedicated to the Cathode Follower. But one of the main statements is, as said here before, that it acts as a nonlinear resistance.
Click to expand...

Thank you very much, for re-activating the thread! :) Most theory in tube amp books is based on DC load lines and DC operation points. On certain points I feel some of these writers forget that they amplify AC signals with it ;)

Cheers
P

PS: I don't refer to your links above, I think they were great! :encouragement:
 
Thanks. But I guess to fully understand what a Cathode Follower does system theory wise, one needs to understand the underlying physics of the circuit and derive a non-linear ordinary differential equation, which models this behaviour. Then linearize, discretisze it and compute it in real time. Probably with a lot of unknown parameters, that can't be measured (directly). That's what I'd guess. The Fractal Audio team must have put a great effort into this.
 
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