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Automotive 0v to 12v InPowered Indicator

Automotive 0v to 12v Electrical Voltage Indicator using 74HC04, 74HCT04

Making a joule thief

Making a joule thief How to make a joule thief charger ? This is a very interesting circuit, it will drive 6 volt led from a single 1.5 volt cell. How to make a simple joule thief – Here are the schematic diagrams that are involved with the joule thief circuit A joule thief is […]

led driver circuit diagram

High Power LED Driver Circuit Diagram how to use led driver ? led driver schematic – efficient led driver circuit

Transformerless Power Supply circuit diagram

Transformerless Power Supply circuit diagram 240VAC to 5V DC Power Supply using 7805 18V 1A Power Supply using LM350T, LM7818 2 Way To Build A Negative Bias Supply +5v Power Supply using 7805, LP3872ES Variable Dual Lab Power Supply 2 This low noise audio power supply circuit can reduces noise and ripple voltage by 40dB […]

RELAY driver CIRCUIT WITH OPTICAL ISOLATION

RELAY driver CIRCUIT WITH OPTICAL ISOLATION using PMV30UN

Lead Acid Battery Charger circuit for 6V – 12V

Lead Acid Battery Charger circuit for 6V – 12V using NE555, LM7812, 2SA671, 1N4002, BC549

Electronics Schematic Diagram alarm Door Bell circuit using IC UM 66 part 1

This is a slight modification of that circuit. In the previous circuit you have to keep the switch pressed for making the IC play the full music. Here if once the push button is pressed C1 is charged and the transistor Q2 will keep the IC playing the music till it ends. The time for […]

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