Electronic Schematic Diagram

This insect repellent circuit will repel insects such as mosquitoes, flies and cockroaches from your home or yard effectively. circuit uses a specific frequency to […]


This is the 100 Watt power amplifier circuit based power amp chip LM3886. Single chip of LM3886 is able to generate power output up to […]

Here is the USB sound card circuit based on PCM2706 which dedicated for USB audio. With USB controller module inside PCM2706, there is no more […]

This is an audio mixer circuit which designed along with VU meter circuit. The circuit is for one channel input, if you need, for example […]

Below circuit is an echo chamber circuit which can be used for smoothing your voice from the microphone. This circuit may used for any kind […]

The following diagram is the circuit diagram of 20 band stereo graphic equaliser which will controlling the audio signal in specific frequency range. The power […]

This is a stereo VU booster circuit diagram based on transistor FCS9014 which usually used for pre-amp and regulator circuit and switching. With simple circuit […]

The following circuit diagrams are tone detector circuit diagrams which also known as sound activated switch circuit. Actually, these circuits? use microntroller for switching because […]

Here is the circuit diagram of car headlight alarm. This device can be set for one or two functions: First, to indicate that the head […]

This transistor ignition circuit give your car to have better starting and smoother running, particularly at very high and very low RPM. Lower fuel consumption, […]