Refer to Fig. 13.23 and assume that the bases of Q9 and Q10 are at approximately
Chapter 13, Problem 13.28(choose chapter or problem)
Refer to Fig. 13.23 and assume that the bases of Q9 and Q10 are at approximately constant voltages (signal ground). Find Ro9, Ro10, and hence Ro. Use VA = 125 V for npn and 50 V for pnp transistors. Use the bias current values in Table 13.1.
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