This is the DIY amplifier diagram using the STK4191 IC. This IC can make 70w+70w audio output using 35-0-35 voltage and 3 amperes. It’s a stereo audio amplifier. In this circuit, we can use stk41 series. stk4121,stk4122,stk4141,stk4152,stk4191. But the voltage should be different. 25-0-25 voltage to 45-0-45 voltage, it depends on the IC number. But …
DIY car amplifier using 12 volt battery: This is a DIY car amplifier using 12 volt battery. HA1388 is a stereo audio power amplifier IC from Hitachi. This circuit can make a stereo mode 18+18 watts output. and in mono mode can make 35 watts of output. Here, use HA1388 12-pin audio IC. This circuit …
This is a 2-transistor amplifier circuit diagram using 2SC5200 and 2SA1943 transistors. This is one of the best pairs of amplifier transistors. This pair transistor can make 150 watts of audio output. It’s a mono audio circuit board. We can use here 25-0-25 voltage to 60-0-60 voltage maximum. positive, negative, and ground voltage needs. …
This is a DIY car amplifier circuit diagram using tda2004 IC. It’s a 12-volt audio amplifier circuit diagram. This circuit can make 25 watts in bridge mode. In stereo mode, this IC can make 10+10 watts. We can use a 12-volt battery to run this circuit. For this, we can use it in the car. …
Transistor amplifier circuit using MJE15003 and MJE15004: This is the Transistor amplifier circuit using MJE15003 and MJE15004 transistors. This circuit can make 300 watts of output using 50-0-50 voltage and 6 amperes. We can use any PNP and NPN transistors. It’s a mono audio board. The part numbers MJE15004 and MJE15005 appear to be related …
This is a mini amplifier circuit diagram. It’s so easy to make. This amplifier for the learning people. It’s a DIY project. Here we can use a maximum 18-0-18 voltage. Here needs dual voltage. 12-0-12 to 18-018 voltage can be used. 30 watts output. How to add an extra transistor: How to add an extra …
Mini amplifier circuit using LA78040: This is a Mini amplifier circuit using LA78040. It’s a stereo audio board. We can use a maximum AC24 voltage. This circuit can make 9+9 watts of output. It’s a mini circuit board. We can also use a DC 24-volt. TDA2050 MONO BRIDGE: This is the TDA2050 MONO BRIDGE …
This is the driver circuit diagram for the PNP and NPN transistors. This circuit runs with positive, negative, and ground voltage. We can use 25-0-25 voltage to 60-0-60 voltage. 2sc5200 and 2sa1943 are the best transistors for this board. We can also use C5198 and A1941. We can use a minimum of one pair to …
This is a Subwoofer amplifier using the TDA2030 IC. This circuit can make 15+30+15 watts of output. It needs 12-0-12 voltage and 3 amperes. The input is 2.0, and the output is 2.1. Left speaker, Right speaker, and the subwoofer speaker output. Here are 3 adjustable volumes. 1st one for the master, 2nd one for …
2.1 amplifier circuit subwoofer: This is the 2.1 amplifier circuit subwoofer. This circuit is for the TDA8580 and TDA8581 ICs. We can use 8 volts to a maximum of 24 volts. The best voltage is 12 to 16 volts. This diagram can make 20watts+40watts+20watts. It’s 2.1 output. 3 input and 3 output. 2 input for …