This suggests that perhaps the simultaneous inclusion of
added resistances RD1 and RD2 in the proposed amplifier
circuits and the high driving voltages corresponding to the
transistors Q1, Q2 and Q3 (Table-III) is responsible for the
simultaneous increase in the voltage gain [3]-[4] and
bandwidth. The proposed amplifier is also found to effectively
remove the problem of poor response of a conventional
Darlington pair amplifier at higher frequencies as well as the
narrow bandwidth problem of the small-signal Sziklai Pair
amplifier [4], [6]-[7], [10].