Mini UPS Project

Here the simple Mini UPS circuit diagram. This circuit can provide an uninterrupted power supply (UPS) to operate 12V, 9V…

55 years ago

Automatic Light Controller

This is the circuit diagram of automatic light controller which use 78xx voltage regulator IC series. The voltage regulator ICs…

55 years ago

4 Stage FM Transmitter

This is the FM transmitter circuit which apply 4 radio frequency stages, that are a VHF oscillator designed around transistor…

55 years ago

Electro-Harmonix Soul Preacher

This is the circuit diagram of Electro-Harmonix Soul Preacher pedal. (more…)

55 years ago

LPG Gas Leakage Sensor Alarm

This is the schematic diagram of LPG gas leakage sensor alarm. The circuit operates off a 9V PP3 battery. Zener…

55 years ago

Toy Car Remote Control

The circuit, consisting of an infrared transmitter-receiver pair, utilizes IR beam transmission to switch the toy car "on" or "off',…

55 years ago

Laser Communication (Transmitter – Receiver)

This is the circuit diagram of laser communication system that transmit the sound or music signals by way of a…

55 years ago

Seismic / Vibration Sensor

This is the circuit diagram of seismic / vibration sensor. The circuit simulates a seismic sensor to detect vibrations/sounds. It's…

55 years ago

Electronic Motor Starter

The above diagram is the schematic diagram of an electronic motor starter circuit. This motor starter protects singlephase motors against…

55 years ago