Diagram Of Class A Amplifier. In case of class a amplifier the conduction angle is 360 degree. Transformer coupled class a amplifier the above shown circuit is a directly coupled class a amplifier.

Class a amplifier is a high gain amplifier with high linearity. Excellent impedance matching is achieved. In the below image an ideal class a amplifier is shown.

As we stated above a 360 degree conduction angle means the amplifier device remains active for the entire time and use complete input signal.

R1 and r2 are meant for biasing the transistors. Construction of a class a amplifier. An amplifier where the load is coupled to the output of the transistor using a transformer is called a direct coupled amplifier. In the below image an ideal class a amplifier is shown.