Electronic Schematic Diagram

This is the circuit diagram of rain detector alarm. When the sensor is wetted with the water, then the alarm will be activated. This circ...

  This is the circuit diagran of two tone electronic siren. The scheme is simple and easy to built, it based on two ICs with different ...

Here the circuit diagram of PWM Controller which uses complementary half-H peripheral drivers SN75603 and SN75604, with totem-pole output...

This is the schematic diagram of cellphone charger circuit which connecter to the USB as main power. Whit this circuit, you can charger ...

This is a small variable power supply delivers adjustable output voltage of 1.3v-12v. The current output determined by R3. With current s...

This schematic diagram is a light-operated, remote-controlled solidstate switch circuit to handle lamp. While in darkness, the res...

Here the very simple and easy build gold detector circuit. The circuit capable to sense gold or metal or coins from a distance of about 2...

This is a 2-station simple intercom circuit build based on transistors part and using common 8R mini speakers. The speaker works as micro...