How to check positive and negative voltage: This is the circuit for checking the voltage. this circuit is for polarity checking for the negative and positive voltage. sometimes we have to check the voltage polarity wire when we use the same color wire for the voltage. normally it happens for …

Low Pass Filter For Subwoofer: This is a Low Pass Filter For a Subwoofer amplifier. we always like extra bass. We need a subwoofer box. this subwoofer needs an amplifier used in this circuit. this circuit makes only bass. it’s made only low part. this circuit we used as a …

How to make an easy amplifier using 12 voltage: This is an easy amplifier circuit diagram. here used one Ic LM386 as a driver and 2 transistors for amplifier the sound. this is the circuit for learning people. this circuit run with 12 voltage. 2sc5200 is an NPN-positive transistor. and …

Microphone circuit diagram for the amplifier: This is the Microphone circuit diagram. this is an easy circuit. every amplifier needs a microphone. if we want to use a microphone for the amplifier then we have to use this circuit. here used only a transistor. C1815 is an NPN transistor. This …

Amplifier circuit diagram using tda2030: Amplifier circuit diagram using tda2030. this is a 14 watts 4-ohms audio amplifier. this circuit can run with 6-0-6 to 18-0-18 voltage. here need dual voltage positive negative and the ground voltage. normally this circuit is used in the 2.1 sound system. it’s a mono …

how to make bass treble and volume controller circuit: This is a bass treble controller circuit. this circuit needs to control the sound quality. every amplifier needs this circuit to control the bass and to control the treble. There is no pre-amplifier in this circuit. if we use a pre-amplifier …

How to make flip flop circuit: The flip-flop is a digital electronics circuit. This circuit with two stable states that can store digital binary data. This stored data can be changed by applying different inputs. This circuit has two inputs and two outputs. this circuit operates with a negative clock transition …

How to Make Inverter at Home: This is an inverter to make 12 voltage to 220 voltage. it’s an easy inverter circuit diagram. here used only two NPN transistors. 2sc5200 transistor. and two resistors only. both resistors are 2 watts. this inverter makes 50 watts maximum. we need one 12-0-12 …

TEA2025B amplifier circuit: This is a mini 5 watts + 5 watts TEA2025B amplifier circuit diagram. here used TEA2025 ic. this IC can make 5 watts for each channel in stereo mode. we can use 6 voltage to 15 voltage maximum. this circuit is a stereo circuit. this IC can …

How to make an easy amplifier: This is the theory of making an easy amplifier using a transistor. We usually make this type of circuit as a pre-amp for our sound system. every bass tone circuit got this type of pre-amplifier. And also we can use this type of circuit …