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RE: A very bad idea

Dennis, I appreciate you making that correction.

Please understand that there is no real difference between what you call the "main signal path" and the cathode bypass position or the decoupling position.

The audio signal at the grid of a tube causes that tube's plate current to change, to increase from the idle point and to decrease from the idle point. The plate current change is what causes there to be a output signal.

The cathode bypass cap is in series with the tube and all of the AC component of that plate current flows through the cathode bypass cap.

That cathode bypass is every bit as much in the signal path as a coupling cap is.

The decoupler (last cap in the power supply) is also in the main signal path in a single ended circuit for all the same reasons.

The cathode bypass cap, the tube and plate load are all in series with the last cap in the power supply and in series with each other.


Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"


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  • RE: A very bad idea - Tre' 03/15/1318:48:24 03/15/13 (1)

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