Common Emitter Transistor Amplifier for Mic

245

03:41:21

I am pretty new to electronics, and I have started home study a while ago. One of the things that gave me trouble is the CE Amp, because without the proper values inserted I could not build one in EC to figure out what the circuit is properly supposed to do. 

I think I have done it now, thanks to this handy and well detailed guide (http://youtu.be/Br3uOM0IVjc) which I partially reproduced in my circuit. The oscilloscope compares the input voltage waveform of the source with the one on the 10uF C. 

I inserted extra the 1uO resistor on the base just to be able to measure the Current, and the switch for the Mic bias resistor.

Few questions for the pros:
1. Is this the way a CE Amp is supposed to function?
2. What is a Mic bias and why is there supposed to be current there?

Thank you for answering!

published 10 years ago

jose1979

10 years ago

Hi, see if you look at the signal at the collector capacitor, the signal is amplified but not negative because semiclo followed the condenser should put a resistor if you do, measuring the signal in that resistance really tenie negative half cycle

jose1979

10 years ago

http://everycircuit.com/circuit/5571293218865152

jose1979

10 years ago

http://everycircuit.com/circuit/4939748611194880

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