Tube amp terminology


According to someone I spoke all good phono amps are pure class A push pull triode. That started me thinking, what does that even mean?

I do not own any tube amp nor will I own any tube amps in the foreseeable future. But I am curious about the terminology. When reading forums I read terms lie: cathode follower, triode, pentode, tetrode, OTL, push pull, SET, class A, class A/B, auto bias, negative feedback, zero feed feedback etc

So can someone here please explain tube amps to me? I know some of these terms are not solely used for tube amps.
mordante

Showing 2 responses by wolf_garcia

There are very few amp design explanations anywhere that don't descend into some areas of complexity that really do require some education about this stuff. Good luck.
Atmosphere gets the "succinct and actually useful" response award for the entire year. I just wish I could afford an Atmasphere amp.