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    amplifier question

    i told you the question is to design an amplifier and as u can see i did do it but i would like to improve it
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    amplifier question

    it is a homework , but i did work on it i just have few problems and i just need help and so advices if there is any .
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    amplifier question

    actually i had to design an amplifier using transistors but after i designed the two stages i discovered the impedance matching problem so i tried to use emitter follower to fix that but the transistor used to get very hot and the supply voltage dropped to around 7v. so it was either i add...
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    amplifier question

    design audio amp to drive 4ohm speaker. is there any way to increase the gain even more.
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    amplifier question

    What is the purpose of those capacitors?>>>that is my question??? at very high and low frequencies.. not sure but i think no first stage around 7 the 2nd is around 5, depends on the biasing ..
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    amplifier question

    hi......I need help with understanding why when i change capacitor C5,C3 to higher value my gain is not stable. i mean when i increase the input frequency my gain will increase but at current or smaller value the gain wont change. i want to know why , and how to calculate the value...
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    question about cuttoff and saturation regions

    for example in this circuit
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    question about cuttoff and saturation regions

    How to can i know (measure) if the transistors are operating in saturation or cutoff region.?
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