increased gain

distorted output

reduced gain with high efficiency

increased efficiency

10%-30%

30%-50%

50%-60%

100%

low crossover distortion

no need of output transformer

its increased gain

its increased efficiency

less than half input cycle

more than half input cycle

half input cycle

entire input cycle

two NPN transistors

two PNP transistors

one NPN and one PNP transistors

two NPN and two PNP transistors