I want to calculate the output impedance of a class AB push-pull output stage from the speaker's point of view(without GNF loop). I have estimated rp for the output tubes but I'm not sure what to use for RL, the class A load for each tube? the class B load? the combined plate to plate load? Do I halve the impedance because there are two tubes? I just need a little direction here.
Then do I divide by the impedance ratio of the transformer to get the output impedance at the speaker?
Forgive me if this was covered in another thread, but I could not find it.
Then do I divide by the impedance ratio of the transformer to get the output impedance at the speaker?
Forgive me if this was covered in another thread, but I could not find it.