The complementary BJT follower shown in Fig P10.22(a) has the approximate transfer characteristic. Observe that for -0.7 V <= v1 <= +0.7 V, the output is zero. This "dead band" leads to crossover distortion. Consider this follower to be driven by the output of a differential amplifier of gain 100 whose positive-input terminal is connected to the input signal source vs and whose negative-input terminal is connected to the emitters of the follower. Sketch the transfer characteristic vo versus vs of the resulting feedback amplifier. What are the limits of the dead band, and what are the gains outside the dead band?