Variations of maximum voltage gain with collector
resistance RC and load resistance RL are also estimated (not
shown in form of figures). It is found that maximum voltage
gain has a nonlinear rising tendency for increasing values of
collector resistance RC for all the three amplifiers up to 10KΩ
and beyond this critical limit, the voltage gain gradually
acquires a saturation tendency. Darlington pair, Sziklai pair
and the proposed amplifier circuits performs fairly below
40KΩ of RC.