2 x 1W Stereo Amplifier
Circuit diagram of 2 x 1W Stereo audio Amplifier with IC KA2209
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1W Stereo Amplifier using LM386N
The manual circuit for 1W Stereo Audio Amplifier using LM386N
4W Stereo Amplifier using LM2877
This is the diagram of 4W stereo power amplifier built based stereo power IC LM2877 with a few of external components. The circuit required single power supply with voltage range of 6VDC – 24VDC. Heatsink is a must to prevent over heating on the IC.
2 x 70W Power Stereo Amplifier based on IC STA550
Here’s the circuit diagram of a 70W stereo power amplifier which built using single power IC STA550. The circuit is simple and require little additional electronic components to support the work of IC STA550. This power stereo amplifier works with dual polarity / symmetrical power supply. Since based to the datasheet, the negative supply range… Read More »
2 x 12W Stereo Amplifier with TDA1521/TDA1521Q
This is a stereo audio amplifier circuit which will deliver 12W audio power output on each channel. This circuit built based on single IC TDA1521 or TDA1521Q, supported with a few external components. General purpose power supply can be used to operate this amplifier circuit, recommended voltage: 24VDC (asymmetrical). The TDA1521/TDA1521Q is a dual hi-fi… Read More »
2x1W Stereo Amplifier with IC KA2209
This is 2x1W stereo amplifier circuit based on single IC KA2209. IC KA2209 is an equivalent IC to the TDA2822, you can use TDA2822 if you can’t find KA2209. It is ideal for battery powered operation since the supply required for this circuit is 2V to 9VDC. Power output depends critically on speaker resistance &… Read More »
300W RMS Stereo Power Amplifier based IC TDA7294
This is the 300W RMS stereo power amplifier circuit project. This amplifier is based four pieces of power IC TDA7294. It’s mean that every single channel of the circuit uses two ICs in bridge mode. In this application, the load value must not be less than 8 Ohms.
400W RMS Stereo Power Amplifier
This is the schematic diagram of 400W RMS stereo power amplifier which use power transistor to work. This amplifier in addition to providing good sound power, also with excellent quality and a high fidelity with low noise, to obtain the 400 watts we can put 2 speakers of 4 Ohms or 4 of 8 Ohms.… Read More »
6-10W Stereo Audio Amplifier TDA2005
6-10W Stereo Audio Amplifier Circuit with TDA2005 – circuit manual