(a) Using the BJT parameters of the text, fi nd R10 so that IC19 5 2IC18 in the 3rd stage. What is the resulting value of VBB? (b) Using the BJT data of the over fi nd the standby currents IC14 and IC20 under the assumption that R6 and R7 can be ignored. (c) Refi ne your calculations with R6 and R7 in place.
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