Total Harmonic Distortion (THD) percentage is also
calculated for the Darlington pair, Sziklai pair and the
proposed amplifier circuit using standard formula [1]-[2], [10].
The THD for Darlington pair amplifier is estimated for 10
significant harmonic terms and found to be 0.734% while that
for Sziklai pair amplifier is estimated for 8 significant
harmonic terms and found to be 1.72%. Similarly for proposed
amplifier it is estimated for 6 significant harmonic terms and
found to be 4.154%. Hence conclusively, the voltage gain and
bandwidth of the proposed amplifier significantaly enhances
on the cost of THD.