This is a portable, 230V high-power incandescent electric lamp flasher circuit diagram. It is actually basically a double flasher (alternating…
This is an easy, low cost and easy built circuit of an electronic horn which is designed close to quadruple…
Here the low cost and easy build circuit of ticking bomb sound generator. This circuit generates a sound matching to…
This is the circuit diagram of white line follower toy. The actuator of the toy is the DC motor. This…
Here the 220V AC lamp touch dimmer circuit. By only touching this touch dimmer you are able to increase the…
This is a low-cost and simple intercom circuit design. Some intercom circuits is build by applying integrated circuits. The circuit…
This is really a very simple home telephone ring tone generator circuit which is built with applying only several electronic…
Here the simple schematic of multitone siren alarm circuit. This multitone siren is effective for reverse horns, burlgar alarms, and…
This is a very simple adjustable analog timer circuit diagram. You can build this circuit just for fun, for newbie…
This is the circuit diagram of automatic light controller which use 78xx voltage regulator IC series. The voltage regulator ICs…