Without Local Feedback: A base-biased amplifier has an internal emitter resistance re' of 3.85 ohms, an ac load resistance rc of 800 ohms, and an ac base voltage of 1 mV. What is the voltage gain and the ac output voltage?
Answer: The voltage gain equals rc divided by re', which is 208. The ac output voltage equals the voltage gain times the ac base voltage, which gives 208 mV.

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