3 Channels Mini Mixer
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Multimedia RIAA Preamplifier
Even if a large number of album titles once available on vinyl are now, little by little, being proposed as CDs, not all are available and far from it. You may ...
Simple Police Siren US-Style
The circuit described here can create three different US-style` siren sounds: police, ambulance and fire engine. The desired sound can be selected using switch ...
9 Volt Portable Mixer Circuit
The objective of this project was to design a small portable mixer supplied by a 9V PP3 battery, keeping performance quality. The mixer is formed assembling thr...
Doorbell Sound with CD4001 CD4060
The doorbell sound circuit was two-tone sound. With the switch S1. working of the circuit, IC1 is a frequency division circuit, and a sound frequency generator ...
10 Band Graphic Equalizer Circuit
This 10 Band Graphic Equalizer Circuit a single chip, IC TL074 to achieve a 5-band graphic equalizer for use in systems of high fidelity audio. The 5-band graph...
Audio Mixer 6 Channel circuit
The following is a main circuit of the mixer-6 Ch The circuit consists of six input channels. The mono channels are channels 1-4 and 5-6 CH CH, are intended for...
Infrared Cordless Headphone Amplifier
Using this low amount Project one can carbon AUDIO from TV after advancing anyone. It does not use any wire amid TV and HEADPHONE. In abode of brace of affairs ...
LED Audio VU Meter Circuit
The LED meter circuit is simpler and smaller than its analogue counterpart, and is very common in audio equipment. This circuit is based on LM3915 IC and uses t...
Computer Microphone by BC547
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VU and PPM Meter Circuit for Audio
A VU (Volume Unit) meters used to be the mainstay of audio metering system. The Peak Program Meter (PPM) is notoriously bad at showing the peak signal level. Th...
Train Horn
Train Horn Circuit Diagram based IC NE556. The circuit is quite simple and easy to built, also it is inexpensive. With this circuit design, it will not give hig...
USB Powered Stereo PC Multimedia Speaker
USB Powered, Stereo PC Multimedia Speaker Circuit Diagram. This circuit is powered by 5V DC source obtainable from the USB port of the Computer. When electrical...
univibe pedal circuit diagram
The Univibe is actually a footpedal-operated phaser or phase shifter for generating chorus and vibrato simulations for electric organ or guitar. It was introduc...
Tube Distortion Pedal circuit diagram
Tube Distortion Pedal circuit diagram. IC1 : 747 dual op-amp, other ICs may be substitued but pinout will different. You should check the datasheet. IC2 : LM340...
Telephone Ringtone Generator
Telephone ring tone generator circuit, built with only several components. It generates simulated telephone ring tone and requires 4.5V DC to 12V DC voltage...
Surround Sound Decoder circuit diagram
Surround Sound Decoder circuit diagram. The circuit`s operation starts as the stereo sound signal transports surround sound information on the master volume par...
Stereo Electret Mic Preamplifier
This a simple stereo electret microphone pre amplifier circuit. For maximum performance, use solid capacitors or film capacitors and metal film resistors. Here ...
Six LED Stereo VU Display
The following circuit is six LED stereo VU display diagram which build using Dot/Bar Display Driver IC LM3915. This VU disply should be connected before amplifi...
Simple Audio Pre-Amplifier
This easy circuit provides good gain to weak audio signals such as electret microphone. Use it in front of an RF oscillator to make an RF transmitter that`s ver...