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Push-pull amplifier: This is push pull amplifier circuit diagram. input and output base amplifier. here used 2 transformers. One is an input transformer and the other is an output transformer. used 12 voltage only. we can use the battery for this amplifier.  here used PNP transistors. 2n2955 is the best …

How to make high voltage: This is the circuit to make high voltage. normally we need high voltage in the factory. or in our daily life, we need this circuit to kill mosquitoes. we buy the bat to kill the mosquito. in the bat got this type of circuit. we …

how to make a simple inverter: This is a simple inverter for learning people. it’s a school project. this inverter can make a maximum of 15 watts. we can use only led lights or other goods under 15 watts. This circuit used only 2 transistors. transistors need heat sinks also. …

12-volt battery charger: This is the 12-volt battery charger. this circuit is a simple circuit diagram. but this circuit is dangerous. we can use this circuit without touching it. this circuit makes 12 voltages and 500mA. but this circuit can electrically shock. we can change the small battery. like 4/5 …

Bass treble circuit diagram: This is a Bass treble circuit diagram. I always need this circuit to make an amplifier. if we want to make a good-quality of sound then we need this circuit. every amplifier makes a raw sound. amplifier only makes the sound lower to higher. like small …

12-volt amplifier circuit diagram using LA4440: This is a 12-volt amplifier circuit diagram using LA4440. it’s a simple circuit diagram. it’s a stereo amplifier. but now it’s a mono amplifier in bridge mode. in stereo mode, it’s 6+6=12 watts. but in bridge mode 19 watts. we can use 12 volts …

Motor forward and reverse circuit: Sometimes we need a circuit to make the motor move forward and reverse. here in this circuit, we can see the simple circuit. only used a 6-pin switch. this switch changes the voltage only. this circuit changes the voltage only. positive to negative and negative …

Simple amplifier circuit diagram: This is a Simple amplifier circuit diagram. here used 2 transistors. 2n3055 is an NPN transistor. and Mj2955 is a PNP transistor. both are metal transistors. we also can use another transistor here. Like 2sc5200 or 2sa1943. or C5198 and A1941 also can use here. we …

Speaker protection circuit diagram: This is a Speaker protection circuit diagram for our amplifier. this circuit can save our speaker from unwanted burning. Maximum original amplifier got this circuit with amplifier section or power section. but when we make an amplifier using a local circuit, we have to use this …

How to make 12 volts: How to make 12 volts for the preamplifier. this voltage we need for making an amplifier. the positive negative and ground voltage needs for making an amplifier. class AB, class H amplifier needs dual voltage. when we need 12-0-12 voltage. normally we use 7812 and …