12.2 For the emitter follower of Exercise 12.1, in which I = 14.8 mA and RL = 1 kΩ, consider the case in which vO is limited to the range –10 V to +10 V. Let Q1 have vBE =0.6 V at iC =1 mA, and assume α 1. Find vI corresponding to vO = −10 V, 0 V, and +10 V. At each of these points, use small-signal analysis to find the voltage gain vo/vi. Note that the incremental voltage gain gives the slope of the vO-versus-vI characteristic. –9.36 V, 0.67 V, 10.68 V; 0.995 V/V, 0.998 V/V, 0.999 V/V