audio article

Here is Simple Preamplifier Circuit. used opamp IC LM382 for Boost the audio input.
push s1 for control output.
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Here is classic Headphone Amplifier because The important part of the circuit is Transistor BC109.
I like this circuit it very good for play music classic.
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Portable [...]

This is circuit power amplifier OTL mini watt.
use Transistor AC176+AC126.
Supply Voltage 9V
Click to View Circuit
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