how to make water level?: how to make water level indicator circuit diagram. this circuit can use anywhere for water or oil levels. here used only 3 led for 3 levels. if we want to make more levels then we can increase more transistors and LED. here used NPN bc547 …
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how to make mosfet amplifier: how to make mosfet amplifier. normally we use the transistor amplifier circuit diagram. but here in this circuit, we have to use MOSFET. MOSFET amplifiers are high-power amplifiers. we can use big voltage and amperes in this circuit. this circuit has 2 MOSFET. we are …
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how to make a fan controller?: how to make fan controller circuit diagram. here used PTC C831 to control the room temperature. this PTC works as a resistor. PTC resistor depends on temperature. this PTC is used in this automatic fan controller. Negative Temperature Coefficient (NTC) thermistors have less resistance …
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how to make a low pass filter for a subwoofer: this is a circuit for driving only a bass amplifier. this circuit makes bass only. when we use a sub-woofer. every subwoofer needs a bass amplifier. every bass amplifier needs this circuit to make only bass. it’s called a low-pass filter. …
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how to make 12 volt inverter: This is a 12-volt inverter circuit. it’s a simple inverter circuit diagram. here used 2 MOSFET. IRFZ44. It’s a good quality MOSFET. it needs 12 voltage full-wave transformer. 12-0-12 voltage transformer. 12-0-12 voltage 10 amperes transformer needed. we know voltage X amperes=Watts. so, 12 …
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How to make pure DC voltage: This is a circuit to make ac to dc voltage. we make dc voltage using a diode. and we make pure dc to using a diode and capacitor. we use a transformer according to our needs. we make primary section and secondary section. primary …
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how to make speaker Protection: This is a Speaker Protection circuit diagram. every amplifier needs this circuit. when the amplifier got any problem then this circuit disconnects the speaker. when the IC or transistor got a short circuit, then the voltage comes out from the audio output. to protect the …
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how to make speaker crossover: This is a crossover circuit for a speaker and tweeter. every soundbox needs this circuit to protect the tweeter and speaker. we have to use this circuit to protect the tweeter. this is a speaker crossover design. to get good sound must need to use …
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how to make voltage for amplifier 35-0-35: It’s a ac to dc circuit diagram. dual power circuit diagram. negative positive and ground voltage. needs a full wave transformer. it’s for 35-0-35 voltage making circuit. every amplifier needs this circuit to making a good sound. here used 1N5408 diode. 4 diodes …
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how to make sanken amplifier: This is an audio amplifier circuit diagram. this circuit has used sanken transistor. 2sc2922 and 2sa1216 transistors are used in this circuit. 4 transistors were used. 2 transistors are 2sc2922 and another 2sa1216. 2sc2922 is an NPN transistor. and 2sa1216 is a PNP transistor. This …
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