In an attempt to simplify the 741 op amp, consideration is given to dropping the emitter follower Q22 altogether and replacing its B-E junction by a plain wire. (a) What are the new values of IC17 and Ri3? (b) Recalculate the 2nd-stage parameters Ri2, Gm2, and Ro2, and compare them with those of the original circuit. (c) Find the 2nd-stage loaded voltage gain (that is, the gain in the presence of Ri3), compare with that of the original design, and comment.
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