Problem

a. Sketch the Giacoletto (hybrid π) model for a common-emitter transistor if rb = 4 Ω, Cπ...

a. Sketch the Giacoletto (hybrid π) model for a common-emitter transistor if rb = 4 Ω, Cπ = 5 pF, Cu = 1.5 pF, hoe = 18 ¼S, β = 120, and re = 14.


b. If the applied load is 1.2 kΩ and the source resistance is 250 Ω, draw the approximate hybrid π model for the low- and mid-frequency range.

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