This high quality circuit with complementary symmetry was found in an Electronics World of 1966. It can be made with modern transistors like the BD or TIP series.
This 5 V circuit was found in December 1978 Radio Electronics magazine. The power transistor must...
The figure shows how to implement a stage with an emitter follower. The stage has high input...
This audio amplifier with differential input steps is designed to operate with asymmetric sources...