Tag Archives: mini amplifier

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 …

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 …

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 …

This is the 2.1 amplifier circuit for the 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 inputs and 3 outputs. …

This is the audio power amplifier circuit diagram. It’s a stereo circuit diagram. Each side can make 100 watts. we can use 25-0-25 voltage to 50-0-50 voltage. We can use any PNP and NPN transistors. here used 2sc5200 and 2sa1943. This pair can make 100 watts.  Here is the best …

Transistor amplifier circuit diagram C5198: This is a transistor amplifier circuit diagram C5198 and A1941. This pair of transistors can make 50 watts. It’s a mono audio board. For stereo needs dual board. we can use 20-0-20 voltage to 40-0-40 voltage and 3 amperes. C5198 is positive and A1941 is …

Amplifier circuit diagram using TDA2005: This is an amplifier circuit diagram using TDA2005. It’s a complete audio circuit board. mono board. This board can make 25 watts in bridge mode. 12-volt-operated audio board. It’s also with a pre-amplifier and bass treble controller. Here are 3 adjustable volumes: 1st one for …

Amplifier circuit diagram using ECG1355: This is an amplifier circuit diagram using ECG1355. ECG1355 hybrid power amp module. probably 35 years old IC. This board can make 100 watts. It’s a mono audio board. The stereo needs a dual circuit. Here needs a minimum of 30 volts to 60 volts. …

Amplifier circuit diagram using STK0055: This is an amplifier circuit diagram using the STK0055 IC. It’s a hybrid IC. This board’s output power is 55 watts. It’s a mono audio board. This circuit needs a dual power supply. The recommended voltage supply is 33V, and the maximum is 53V. The …

5 Volt amplifier circuit : This is a 5-volt amplifier circuit diagram. It runs from 4 volts to 12 volts. It’s a mono diagram. Normally, we can use 5 supplies for this diagram. It’s an easy diagram. It can make 5 watts. We can take the voltage from the USB. …