Fig. 1: Author’s prototype for mono AF amplifier Circuit and working Circuit diagram of the simple amplifier, which is built around audio amplifier LA4425A (IC1), is shown in Fig. 2. Fig. 2: Circuit ...

Here is a simple 5-watt mono audio amplifier using IC TA7222 that drives a 4-ohm speaker using a 9V battery or a 9V DC adaptor. You can also make a stereo amplifier by using two identical circuits.

In building the circuit, keep the wires to the power supply and outputs as short as possible. The resistos R4 and R5 set the voltage gain at the feedback which, in this case, is between 20 and 46 dB.

TDA1562Q si a 70 W high efficiency power amplifier with diagnostic facility. The TDA1562Q contains a mono class-H BTL output power amplifier. At low output power, up to 18 W, the device operates as a ...

The complete circuit diagram for Dual Channel Pre-Amplifier consists of two mono circuits combined to form one stereo circuit as shown in the image below. As you can see the left channel audio, and ...

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