2.1 Circuit diagram using TDA8947J: This is the 2.1 circuit diagram using TDA8947J. This amplifier circuit has 3 audio inputs and 3 audio outputs. One can make 50 watts, and the other 2 are 25+25 watts. We can make one subwoofer and two surrounds. But we must use a low-pass …
Read More »
Amplifier circuit diagram using STK412-170: This is an amplifier circuit diagram using STK412-170. This board can make a maximum of 180 watts + 180 watts. It needs dual voltage with high and low: positive high volts + positive low volts + Gnd + negative low volts + negative high. It …
Read More »
5 Band equalizer circuit diagram: This is a 5-band equalizer circuit diagram for any audio amplifier. Every amplifier needs a bass tone circuit to control the sound and sound quality. This circuit has 5 graphic equalizers to balance the sound as we want. This diagram runs on a single 12-volt. …
Read More »
2.1 amplifier circuit using LA4630N: This is a 2.1 amplifier circuit using LA4630N. This diagram for 3 audio inputs and 3 outputs. We can make 2.1 using this diagram. making 2 for the left and right speakers, and another for the Bass. Stereo section 9V/3Ω 3W×3, 12V/3Ω 5W×3. Super bus …
Read More »
Amplifier circuit board using STK403-090: This is an amplifier circuit board using STK403-090. It’s a stereo audio circuit diagram. We can get a maximum of 80+80 watts using a 45-0-45 voltage. needs dual voltage, positive, negative, and ground voltage. 80 watts 6 ohms integrated circuit. The diagram of this circuit …
Read More »
4-transistor amplifier board: This is a 4-transistor amplifier board. It’s a stereo transistor audio circuit diagram. This circuit can make 150+150 watts using 35-0-35 volts. Here, 2sc5200 and 2sa1943 transistors are used. This pair of transistors can make 150 watts. 2sc5200 is a positive NPN transistor, and 2sa1943 is a …
Read More »
DC power supply Adjustable: This is a DC power supply adjustable. We can adjust the minimum 1.2 volts to a maximum of 35 volts and 1.5 amperes. Here, use one LM317T. It’s LM317T STMicroelectronics Linear Voltage Regulators. This IC needs a good-quality heatsink. One 100k adjustable variable. and a 1k …
Read More »
Sound booster pre-amplifier circuit diagram: This is the Sound booster pre-amplifier circuit diagram. This board is for boosting the sound. This board works as a pre-amplifier. This circuit runs with 12-0-12 voltage to 15-0-15 voltage. Every amplifier needs this type of circuit. Normally, it’s included with the bass tone circuit. …
Read More »
Amplifier circuit using STK403- 450: This is the amplifier circuit using STK403-450. This circuit is for the STK403-000 series. These 3 ICs can be used in this diagram. STK403-430, STK403-440 and STK403-450. STK403- 430 can make 6X20 watts using 30-0-30 voltage. STK403- 440 can make 6X30 watts using 35-0-35 voltage. …
Read More »
Amplifier circuit using STK403- 430: This is an amplifier circuit using stk403-430 IC. STK403-400 series products are audio power amplifier hybrid IC. 6-channel class AB amplifier. This diagram has 6 audio inputs and 6 audio outputs. Each channel got 20 watts. 6X20 watts. 35-0-35 voltage. DIY transistor amplifier driver circuit: …
Read More »
Electronics Help Care Amplifier circuit diagram