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Transistor Qty

Transistor Qty

Transistor Question (Qty)?

I have been copying Transistor Audio Amps from the internet to make a small Audio Amplifier.
All of which have used 2 NPN Transistors.
Is it possible to intergrage, lets say, another 2 into the circuit?
Would that amplify further?

Are there any downsides of doing this?

Thanks.

If you have a weak signal to start with, taking the output of one amplifier to the input of the next can give you more gain. Each stage adds a small amount of noise (hiss) that can be a problem if your signal is too weak, perhaps not giving you the benefit you were after.

If you are driving a speaker and need more power to do so, this would be the wrong approach. You would then need a circuit with more current out, and perhaps more voltage.

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