Fun Circuits

Electronic Siren based NE555

Here the circuit diagram of electronic siren based NE555. This circuit produces a sound like factory siren. It applies a…

54 years ago

Western Music Generator based IC HT82207

This is the schematic diagram of Western music generator circuit based on single IC HT82207. This circuit is able to…

54 years ago

Beeper Sound

This is the circuit diagram of beeper sound. The circuit will generate the sound of a beeper which similar with…

54 years ago

Switched ON Bike Lamp

Do you have a bicycle..? why don't try to build this circuit..?. Powered using battery 3-6V. This circuit will help…

54 years ago

M66T Melody Generator

This is the very simple way to play a song with single 1.5 battery. You can build this circuit for…

54 years ago

Lantern Dimmer and Flasher

Here is the circuit diagram of lantern dimmer / flasher designed by Tony Van Roon: There are two circuit modes:…

54 years ago

Eight Sound Effects Generator

Here the circuit diagram of eight sound effects generator. The circuit will generate 8 type of sound effect, amplify the…

54 years ago

Insect Repellent

This insect repellent circuit will repel insects such as mosquitoes, flies and cockroaches from your home or yard effectively. circuit…

54 years ago

220V Light Dimmer

This simple 220V light dimmer circuit can be used to adjust the brightness of mains lights. It also can be…

54 years ago

Sound Activated Switch

This is a sound activated switch circuit. It's will turn on and turn off based on a loud sound such…

54 years ago