This is an old or “very old” schematic diagram of birdie tone or sound generator. Then, the bird sound circuit used to be a home […]
Category: Fun Circuits
Two Tone Train Horn based NE556 Dual Timer
This is the circuit diagram of two tones train horn which built based dual timer IC NE556. The circuit is quite simple and easy to […]
Low Cost Mosquito Repellent
Here is the simple and low cost mosquito repellent circuit design. The circuit serves to keep the mosquitoes out of the room or the location […]
Bicycle Directional Lights
This is the electronic bicycle directional lights circuit that use inexpensive components and is a good substitute to many commercially available versions in the marketplace. […]
7 Segment LED Digital Clock with IC MM5314N
This is the circuit diagram of digital clock based on IC MM5314N. The clock display uses 6 pieces of 7 Segment LED with format HH:MM:SS. […]
Metronome Sound Generator
This is the electronic circuit diagram of metronome sound generator. The circuit featured adjustable volume and beats/minute with potentiometers. LED used to be a beat […]
Electronic Quiz Button Table
This is the circuit diagram of electronic quiz button table. This circuit is simple, easy to built and of course it is not expensive. This […]
Scoring Display with 7 Segment LED
This is the circuit diagram of game scoring display using 7 segment LED. This circuit consist of a timer IC, two decade counters and a […]
Clap On / Off Switch
This is the circuit diagram of Clap On / Off Switch. The circuit allows you to operate your lighting or any circuit device which use […]
Traffic Baton with Bulb or LED Flasher
This is the traffic baton circuit which available in two versions that are traffic baton with LED flasher and traffic baton with bulb flasher. Both […]
