Class A Push Pull Amplifier Circuit Diagram. But unlike class a in class ab biasing resistor values are selected such that the transistors q1 and q2 are biased just above the cut in voltages. R1 and r2 are meant for biasing the transistors.
The construction of the class a power amplifier circuit in push pull configuration is shown as in the figure below. In the circuit diagram two transistors t1 t2 are placed back to back. Here in this condition.
But unlike class a in class ab biasing resistor values are selected such that the transistors q1 and q2 are biased just above the cut in voltages.
Both the transistors are operated in class b operation i e. In push pull arrangement the two identical transistors t 1 and t 2 have their emitter. This arrangement mainly reduces the harmonic distortion introduced by the non linearity of the transfer characteristics of a single transistor amplifier. One thing about diy audio is that it is a journey not a destination it never ends.
