But why do they say in electronic books that AC flows through the bypass CAP to increase GAIN ? AC gain or DC gain?
<--- Isn't this clear enough?[/quote]Without the bypass capacitor, the AC voltage gain is -Rc/Re.
With the bypass capacitor, the AC voltage gain of -Rc/0, hence increased in AC voltage gain
This is precisely what you should obtain.Only on the Colletor i read a voltage gain increase from the small signal from the input of the BASE transitor
If you set the Digital Multimeter (DMM) to read AC voltage, you will read something close to 0V.When i put my (+) positve probe on the emitter where the bypass cap is and the emitter resistor is i don't read a Voltage GAIN increase why?
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