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This stereo power amplifier integrated circuit TDA2030A is mainly composed of a stereo amplifier, which uses the typical power amplifier circuit, with little distortion, fewer external components, high stability, wide frequency supertron electronics limited range, high fidelity, power, supertron electronics limited etc. advantage, while using four op amps GL324A (LM324) on the input audio signal processing and high, bass control, and more to ensure the quality of sound output. This is a very suitable radio enthusiasts and audiophiles homemade sound kit. The actual power amplifier to listen, soft and delicate treble, bass full round. Kit physical map as follows:
Two-way power amplifier IC is used TDA2030A, supertron electronics limited its a positive input pin, pin 2 is the inverting input, C3, C6, respectively, supertron electronics limited for the left and right input of two coupling capacitors, R1, R4, C2 constitute IC1 negative feedback circuit, R6, R7, C5 constitute a negative feedback circuit IC2, to enhance the sound quality. supertron electronics limited Its 5 feet, 3 feet respectively connected to the positive and negative power supply, the output of 4 feet, 4 Ω speaker load is connected, its effective power up to 20W, W3 is a two-way balance potentiometer, W4 is a two-way volume supertron electronics limited potentiometer.
3. Cartridge IC1, IC2 caution supertron electronics limited foot fully inserted before welding, and pay attention to coincide supertron electronics limited with the holes of the radiator. Each tin solder heating time and the amount should be appropriate to prevent solder supertron electronics limited false and short cut after welding extra pins and check all joints, after confirmation test before electricity. Also note that the power transformer primary, secondary and wiring switches and circuit boards, without supertron electronics limited fail, IC1, IC2 with self-tapping screws and radiators supertron electronics limited connected to the power supply filter capacitor due to the large volume, if pre-installed, it will affect the installation 袿TDA2030A integrated radiator, it should be placed at the end.
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