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LM7812, LM7912 circuit

LM7812, LM7912 circuit for Power Supply Control LM7812 pinout

Supply PV inverter Circuit Diagram

Supply PV inverter Circuit Diagram Supply PV inverter +16V to +30V High quality PV grid-Connected inverters PV charger controllers using BD139

Phone Broadcaster and Telephone Circuits

Here is a simple yet very useful circuit which can be used to eavesdrop on a telephone conversation. The circuit can also be used as a wireless telephone amplifier. One important feature of this circuit is that the circuit derives its power directly from the active telephone lines, and thus avoids use of any external […]

Circuit Diagram and Filter 1.3-5W Power RF Amplifier Trans FM

A amplifier of force RF for the FM , is always essential for the amateur that wants it strengthens some small transmitter, that likely already it has manufactured or has been supplied ready. The present circuit can give 50-60W RF force of expense, with control smaller than 15-20W in the region of frequencies of FM, […]

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 […]

HOW to repair Horizontal Vertical TV

HOW to repair Horizontal Vertical TV ? HOW to repairHorizontal Vertical TV using D2499, BSC25 HOW to repair Horizontal Vertical TV?

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