Here the circuit diagram of electronic siren based NE555. This circuit produces a sound like factory siren. It applies a 555 timer IC which is […]
Category: Fun Circuits
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 take you towards the world […]
Beeper Sound
This is the circuit diagram of beeper sound. The circuit will generate the sound of a beeper which similar with the one in pagers. It […]
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 the bicycle driver in the […]
M66T Melody Generator
This is the very simple way to play a song with single 1.5 battery. You can build this circuit for gift acceccories. When the gift […]
Lantern Dimmer and Flasher
Here is the circuit diagram of lantern dimmer / flasher designed by Tony Van Roon: There are two circuit modes: dimming and flashing. The flasher […]
Eight Sound Effects Generator
Here the circuit diagram of eight sound effects generator. The circuit will generate 8 type of sound effect, amplify the audio signal, so you will […]
Insect Repellent
This insect repellent circuit will repel insects such as mosquitoes, flies and cockroaches from your home or yard effectively. circuit uses a specific frequency to […]
220V Light Dimmer
This simple 220V light dimmer circuit can be used to adjust the brightness of mains lights. It also can be used to adjust the speed […]
Sound Activated Switch
This is a sound activated switch circuit. It’s will turn on and turn off based on a loud sound such as clapping your hands. You […]