Electronics Help Care Amplifier circuit diagram

how to make a speed controller for a dc motor: This is a simple circuit diagram for speed control for a dc motor. We can control the motor rpm as we want. here use one transistor only. C2072 is an NPN transistor. it’s a positive transistor. BCE transistor. we also …

how to make a voltage divider: This is a circuit to divide the voltage to make an amplifier. here used one transformer. one full wave transformer—50-0-50 voltage. but this circuit makes 100-50-0-50-100 voltage. sometimes we need dual power to make an amplifier. some amplifier circuits need dual power low and …

Fan regulator circuit diagram: This is a fan regulator circuit diagram. we can control our fan using this circuit. not only the fan. we also can control the light. this circuit will work under 100 watts and Ac220 volts.    here used one transistor BD136. one 104j 250 volts pf. …

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 …