[математик]

Там же в DIYamplifier.pdf указано :


In Class A there a a few different topologies to examine:
Single Ended resistor loaded Emitter Follower ( MJ 5 Watt amp)
Single Ended current source loaded Emitter Follower ( Andrea Cioffoli)
Single Ended resistor loaded Common Emitter ( Eliot rode's experiment)
Single Ended current source loaded Common Emitter ( Nelson Pass's ZEN)
Push-Pull stage ( John Linsely Hood, Nelson Pass's Son of ZEN, Elliot Rode's Death of Zen, Glen Baddely, Hiraga)
Cascode or Super Symmetry (patented); maybe in the future
MOSFET's, IGBT's or BJT.


Соответственно, больше всех получилось у Пасса.