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Posts tagged 1N4002

InPowered battery charger circuit

InPowered battery charger circuit diagram schematic 6V-12V using NE555, LM7812, 2SA671, 1N4002, BC549 auto battery charger circuit On a lithium-ion cell, 3.8V/cell indicates a state-of-charge of about 50%. It must be noted that utilizing voltage as a fuel gauge function is inaccurate because cells made by different manufacturers produce a slightly different voltage profile. This […]

lm555 lm555c timer

lm555 lm555c timer Circuits

how to make a circuit

how to make a circuit how to make a circuit how to make a circuit using KA2206 simple audio amplifier project, build a circuit and simple circuit game how to make a circuit 2.3W Dual Audio Power Amplifier circuit using KA2206 how to make a circuit

Big Power Amplifier Circuit

Big Power Amplifier Circuit using IRF640, IRF9640, 2N5551, 2N5401, 2N2222A, BD139, 2N2907A

Portable guitar headphone circuit

Portable guitar headphone circuit I built a portable headphone amplifier for testing purposes Headphone amp circuit using : R1 = 10K R2 = 100K R3 = 68K R4 = 1.5K R5 = 3.3K R6 = 330R R7 = 4K7 R8 = 2.2R C1 = 1µF-63V C2 = 100µF-25V C3 = 470µF-25V Q1 =  BC239C Q2 […]

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