220V Light-Operated On/Off Switch

Simple Intercom Circuit with Transistors

This is a 2-station simple intercom circuit build based on transistors part and using common 8R mini speakers. The speaker works as micropho... Baca selengkapnya »

Interior Light Fader for Automobile

Here the circuit diagram of Interior Light Fader for Automobile. The circuit is build using low power operational amplifier LM324 which only... Baca selengkapnya »

One Transistor LED Flasher Circuit

Here the schematic diagram of one transistor LED flasher. This circuit can be the simplest circuit led flasher over the world.... :D This i... Baca selengkapnya »

Magic Lights Circuit using Bi-Colour LED

This is the magic lights circuit which use bi-colour LED as the output to provide the light. The circuit uses 14 bi-colour (red and green) L... Baca selengkapnya »

Cricket Chirping Sound Generator

This is the circuit diagram of cricket chirping sound generator based on IC 4060, a 14 stage ripple counter and oscillator IC. A suitable au... Baca selengkapnya »

Mice Repellent Circuit

This is the circuit diagram of mice repellent. Mice are animals that are very annoying, because sometimes he is damaging the object stored i... Baca selengkapnya »

Electronic Siren Circuit

This is the schematic diagram of electronic siren circuit. The sound produced imitates the rise and fall of an American police siren. When ... Baca selengkapnya »

Electronic Chirping Canary Circuit

Well, for those of you who want to make a small project, this alarm may be an option for you. This circuit will generate the canary chirpin... Baca selengkapnya »

Really Simple LED Flasher with LM3909

This is a very -very easy and simple LED flasher circuit with only needs three components that are: a flasher IC, a LED and a electrolytic ... Baca selengkapnya »

Light Detector

This is a circuit diagram of light detector. This circuit can be used as a sensor of automatic lamp switch, thic circuit also can be used f... Baca selengkapnya »

High Quality Intercom circuit

This is an intercom circuit which use LM380 as the audio amplifier and 2 transistors as the microphone pre amplifier. The sound quality wil... Baca selengkapnya »

Running LED

This is the running LED circuit diagram . The LED will "running" (on) one by one. You can use this circuit for many purpose like m... Baca selengkapnya »

Zone Alarm System

This is the circuit of alarm system with 5 independent zones. Suitable for a small office or home environment. It uses just 3 CMOS IC'... Baca selengkapnya »

Simple Electronic Buzzer

This is a simple electronic buzzer circuit diagram . Cheap and easy to build. The 555 is used as astable multivibrator operating at about 1... Baca selengkapnya »

Digital Clock

This is digital clock schematic diagram . This circuit is quite complex and quite difficult for a newbie because this circuit uses IC with s... Baca selengkapnya »

Dancing LEDs

This is dancing LEDs schematic diagram . the LEDs will dance squence to audio (music or speaking) from the microphone. Components list : R1_... Baca selengkapnya »

Sound Effects Alarm Generator

This schematic in very simple and easy to made. The IC produces all the sound effects, the output at Pin 3 being amplified by the transisto... Baca selengkapnya »

Multi tone alarm schematic diagram

This is a simple and easy to build multi tone alarm circuit that can be used in burglar alarms or sirens. The circuit is based on dual op-... Baca selengkapnya »

Basic Analog Flip Flop Schematics

This schematics is a basic analog flip flop. As we know, there are analog flip flop which built using analog components like ordinary trans... Baca selengkapnya »