7.125 For the common-emitter amplifier shown in Fig. P7.125, let VCC = 15 V, R1 = 27 k, R2 = 15 k, R E = 2.4 k, and RC = 3.9 k. The transistor has β =100. Calculate the dc bias current I C. If the amplifier operates between a source for which R sig = 2 k and a load of 2 k, replace the transistor with its hybrid-π model, and find the values of R in, and the overall voltage gain vo/vsig.

125 - 7.125 For the common-emitter amplifier shown in Fig. P7.125, let VCC = 15 V, R1 = 27 k, R2 = 15 k, R E = 2.4 k, and RC = 3.9 k. The transistor has β =100. Calculate the dc bias current I C. If the amplifier operates between a source for which R sig = 2 k and a load of 2 k, replace the transistor with its hybrid-π model, and find the values of R in, and the overall voltage gain vo/vsig.

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images - 7.125 For the common-emitter amplifier shown in Fig. P7.125, let VCC = 15 V, R1 = 27 k, R2 = 15 k, R E = 2.4 k, and RC = 3.9 k. The transistor has β =100. Calculate the dc bias current I C. If the amplifier operates between a source for which R sig = 2 k and a load of 2 k, replace the transistor with its hybrid-π model, and find the values of R in, and the overall voltage gain vo/vsig.

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