|
Amp/Preamp Asylum Looking for a new Amp or Preamp? If you're after tubes, post over here. |
|
|
|
Amp/Preamp Asylum Looking for a new Amp or Preamp? If you're after tubes, post over here. |
|
In Reply to: RE: Some clarification posted by Tre' on February 10, 2025 at 20:09:27:
And likewise I'm still not a tube guy :)
I've kind of lost the thread a bit but to answer your question nothing is linear! The further up and down the output current vs. Input voltage curve you go then the more distortion there is. The smaller the current excursion around a bias point then the less the distortion (with the limiting case being zero distortion for zero current change = small signal conditions). I don't know what the load line for an emitter/source follower would be but it would probably show the analogous effect that you are describing by tending to cut off the follower if it has to sink current from a load. Followers are great at supplying current to loads but that only works in one direction hence the need for push-pull unless you went with a single-ended follower biased so that it can sink the maximum load current before turning off (or getting too close to turning off) and that would be class A. But, IMHO, even if you did go class A, a push-pull would have the advantage of going into class AB for lower load impedances e.g. it could be 'pure' 50W class A into 8 ohms but give 100W into 4 ohms class AB, whereas a single ended 50W class A could only provide 25W into 4 ohms (current limited).
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Some clarification - 13th Duke of Wymbourne 02/12/2518:55:10 02/12/25 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
