Using a simple (r , gm) model for each of the two transistors Q18 and Q19 in Fig
Chapter 13, Problem 13.35(choose chapter or problem)
Using a simple (r , gm) model for each of the two transistors Q18 and Q19 in Fig. E13.35, find the small-signal resistance between A and A . (Note: From Table 13.1, IC18 = 165 A and IC19 16 A. Also, N = 200.)
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