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Archives for September, 2010

Battery Charger Circuit Diagram with Piezo Ttransducer

Battery Charger Circuit Diagram using LM393, 4011B, 7806, 1N4001, BD140

Phono preamp circuit

Good Phono preamp circuit using BD437, BD438

Data sheet ic

Data sheet ic LM331 DataSheet block diagram Data sheet ic LM331 DataSheet block diagram

Build a Circuit Educational Game

Build a Circuit Educational Game using CD74HC75, CD74AC20

How do I create a speaker ?

How do I create a speaker Speaker is a device that uses electric current to control the varying magnetic field of electromagnetic coil to create sound. Sound occurs when the field varying magnetic field reacts with the permanent and create vibrations of sound waves.

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