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RE: Please elaborate

There are three stages (well, three that invert), so the output is out of phase with the input but it (the feedback line) is connected to the cathode of the input stage.

Since the cathode follows the grid the feedback needs to be in phase with the grid for it to be negative feedback.

In this circuit that can be accomplished by wiring the output transformer so that it reverses phase.

I hope I said that right.

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



Edits: 08/09/15

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  • RE: Please elaborate - Tre' 17:30:22 08/09/15 (0)

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