In tube and transistor and tube amplifiers I am familiar with the
definition of a class A, class B, and class C amplifiers. Until
recently I had assumed class AB1 and AB2 must be somewhere in between
class A and class B, however after reading some post in other news
groups I'm beginning to suspect my understanding of class AB1 and AB2
may not be accurate or complete. So what is the accurate definition of
a class AB1 and a class AB2 amplifier?

Thank you,

Michael Rawls
KS4HY