Fun Circuits
Portable 230V Lamp Flasher
This is a portable, 230V high-power incandescent electric lamp flasher circuit diagram. It is actually basically a double flasher (alternating…
Electronic Horn
This is an easy, low cost and easy built circuit of an electronic horn which is designed close to quadruple…
Ticking Bomb Sound Generator
Here the low cost and easy build circuit of ticking bomb sound generator. This circuit generates a sound matching to…
White Line Follower
This is the circuit diagram of white line follower toy. The actuator of the toy is the DC motor. This…
220V AC Lamp Touch Dimmer
Here the 220V AC lamp touch dimmer circuit. By only touching this touch dimmer you are able to increase the…
Low-Cost and Simple Intercom
This is a low-cost and simple intercom circuit design. Some intercom circuits is build by applying integrated circuits. The circuit…
Telephone Ringtone Generator
This is really a very simple home telephone ring tone generator circuit which is built with applying only several electronic…
Multitone Siren Alarm
Here the simple schematic of multitone siren alarm circuit. This multitone siren is effective for reverse horns, burlgar alarms, and…
Adjustable Analog Timer
This is a very simple adjustable analog timer circuit diagram. You can build this circuit just for fun, for newbie…
Automatic Light Controller
This is the circuit diagram of automatic light controller which use 78xx voltage regulator IC series. The voltage regulator ICs…