How to make 12-voltage SMPS: This is the 12-voltage SMPS circuit diagram. this is an easy circuit. used here KLY MK-21C Universal Power as the MOSFET. first makes ac 220 to Dc voltage 350. then the dc voltage goes to the transformer using this KLY MK-21C Universal Power. the transformer …

How to make 5 voltage: This is a circuit diagram to make strong 5 voltage. normally we use 7805 to make 5 voltage for audio Bluetooth cards or others. but 7805 makes 500ma amperes. but sometimes we need 2 amperes. then we can use this circuit. this circuit can make …

Adjustable voltage regulator using lm317: This is an adjustable voltage regulator using lm317. we can control the voltage from 1 to 35 voltage. if we use 12 voltage then we can control from 1 to 12 voltage. if we use 24 voltage then we can control from 1 to 24 …

12 voltage audio amplifier: This is 12 voltage audio amplifier circuit diagram. this circuit can use 12 voltage battery. we can use this amplifier in the car. normally the transistor needs dual voltage. like positive negative and ground. but here needs only positive and negative voltage. we can use 8 …

How to save Tweeter horn speaker: This is the circuit diagram to protect the tweeter horn speaker. this problem is a common problem. if we don’t use a capacitor to the tweeter then the tweeter will be burned. normally we use the bass speaker and the hi speaker and the …

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 …