Have anyone ever thought that how electronic makes sound? Audio frequency signal generator it like small sound maker. It make electric signal what ear can hear from low boom (20Hz) to very high squeaky (20kHz). This Simple Audio Frequency Signal Generator Circuit very helpful for many thing: Circuit Working: Parts List: Component Quantity Resistors 1k […]
Simple Adjustable LED Dimmer Circuit
Want to change how bright the LED light is? We can use adjustable LED dimmer circuit for that. This small and Simple Adjustable LED Dimmer Circuit helps to control LED brightness so one get just right light for any time. By turning some parts like resistor, transistor and one special knob (called potentiometer), this circuit […]
How to Build a Simple LED Circuit
This article tell How to Build a Simple LED Circuit. LED is small special light that shine when to get electricity. This project show how to join some parts together to make LED turn ON. LED circuits used in many things like torch (flashlight), car back lights and even in big signboards! Circuit Working: Parts […]
Simple Flashing Beacon Light Circuit
This guide shows how to build a Simple Flashing Beacon Light Circuit which does requires few parts like: Timer instructs the light when to ON and OFF fast so it look like blinking. This circuit used for decoration, warning light or just for fun playing! Circuit Working: Parts List: Component Quantity Resistors 10k 0.5W 3 […]
Electronic Muscle Stimulation Circuit
EMS circuit… it like machine using electric stimulator to make muscle go move. It have many small electronic thing like time keeper, signal maker, power booster and sticky pad. This Electronic Muscle Stimulation Circuit send little shock, not hurt but through sticky pad on skin on top muscle. This small shock like brain talk to […]
Simple Regulated Adjustable Power Supply Circuit using IC 723
This Simple Regulated Adjustable Power Supply Circuit using IC 723 show how to make one simple power supply circuit. It can change voltage up and down. We can use one chip call LM723 with some people say IC 723. This chip is good and it take power from plug and makes it stable. Also we […]