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Free Electronics Circuits, Projects and Ideas

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  • Home
  • Shop
    • Amplifier PCB
    • Amplifier Board
    • Low Pass Filter Board
  • Electronic circuits
    • Amplifier Circuits
    • Inverter circuit
    • Power supply circuit
    • Simple circuits
    • LED Circuits
    • Hobby electronic circuits
    • Low pass filter circuit
    • Cross Over Circuit
  • Electronic Projects
    • Basic electronics
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Free Electronics Circuits, Projects and Ideas

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12V to 6V Converter Circuit Diagram

Toroidal transformer winding calculation

Toroidal Transformer winding Using Formula

transformer winding

Transformer Winding: Calculate Copper Gauge and Amps Ratings

PIR motion sensor relay on off circuit

PIR Motion Sensor Relay On/Off Circuit

Low pass Butterworth filter circuit

Butterworth Low Pass Filter circuit diagram and explanation

FM transmitter circuit diagram

How to Build FM Transmitter Circuit

SIMPLE-ONE-TRANSISTOR-FM-TRANSMITTER-CIRCUIT-DIAGRAM

Simple One Transistor FM Transmitter Circuit Diagram

The 3 transistor FM transmitter circuit will be ranging about 100-meter distance. At the low cost, you can build this circuit easily.

3 Transistor 100 Meter FM transmitter circuit

continuity tester circuit

Simple Continuity Tester Circuit Diagram

connect led to ac

Connect LED to AC: The Direct Connection of Led bulb to 230v AC

lead acid battery charger with automatic cut off

Automatic Lead acid Battery Charger

LM386 ic audio amplifier circuit diagram

LM386 IC Audio Amplifier Circuit

current limiting resistor for Glowing led from Ac

LED 230V Resistor: Safe Direct AC Connection Explained

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