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    181 x DIY Audio Projects

    Browse through a total of 181 Audio amplifiers, filters, generators, mixers and audio preamplifier circuits. Huge collection of audio projects, kits and the circuits schematics for diy easy-to-build audio kits.

    2N3055 circuits   audio amplifiers   audio compressors   audio equalizers   audio filters   audio generators   audio indicators   audio mixers   audio preamplifiers  

    FX-1 Special Effects Feedback Processor The FX-1 is a feedback control device that is designed to expand and enhance the capabilities of commercial special effects processors. All manufacturers claim that their processors are the best on the market, but the truth is, they are all excellent and their minor differences are insignificant. As a musician though, you like to explore new territory and your...
    P-300 Pulse Interface Music today has become more eclectic, sophisticated, and multi-element influenced. Groups are expanding into areas of musical expression that have never been explored. All of this puts heavy demands on synthesizers and nowhere is the demand greater than with rhythm systems. Because of programming limitations, voicing problems, or any number of other problems, most professional studios employ different brands...
    Simple Sound Processor Circuit Simple Sound Processor presented here is an ultra-simple circuit module suitable for almost all basic electronics and microcontroller projects. For example, this module can be used as a front-end in an electronics project to detect and process ambient sound in an efficient manner. Even less-experienced hobbyists will find the construction of the circuit on a general purpose printed circuit...
    Better Bird Scarer (Repeller) Project Every hobby gardener often think some form of bird-scarer (repeller) can be helpful at certain times of the year to protect the crops. Don’t worry — I am not planning to reinvent the traditional scarecrow stuffed with straw, usually found in the middle of a farmer’s field to protect fruits and vegetables. But then here is an inexpensive circuit...
    TPA3122D2 Class D Audio Amplifier TPA3122D2 IC is used as a class D audio amplifier and can deliver up to 15W of power at 10% distortions. The real advantage of using a class D amp, especially TPA3122 is the fact that this IC doesn’t need a heatsink because it has a high efficiency. Another great thing about it is that you can buy a...
    Common Emitter Amplifier in PartSim PartSim is used in this example to simulate the Common Emitter Amplifier. The base bias voltage is set with the voltage divider arrangement. The input signal is amplified by the 2N2222 NPN transistor. Coupling capacitors are used to separate and block any DC component from the AC signals. Also shown is a bypass capacitor CE that is open at...
    Funny Micro-Synthesizer If you are looking for an easy-to-build microcontroller-based sound generator capable of making some amazing, raw synth tones, here is a funny micro-synthesizer/noisebox project to quench the thirst. It’s an extremely simple circuit with an ATmega8 directly generates audio with a little external circuitry. However, since the AVR’s pin outputs are digital, the resulting audio waveforms have only 1...
    Classic Tone Control Circuit with Low Noise Transistor Tone control is a type of equalization used to make specific pitches or “frequencies” in an audio signal softer or louder. A tone control circuit is an electronic circuit that consists of a network of filters which modify the signal before it is fed to speakers, headphones or recording devices by way of an amplifier. Tone control allows listeners...
    Audio Preamplifier for PA system An audio preamplifier is to be developed for use in a small portable public address (PA) system. The preamplifier will have a microphone input, and its output will drive a power amplifier. A block diagram of the complete PA system is shown in the figure (http://www.digikey.com/schemeit/#ign). The dc supply voltages are provided by a battery pack or by an...
    Portable Morse Code Practice Oscillator Little circuit of a Morse Code Oscillator is presented here. Excellent for learning and teaching Morse code, this code practice oscillator – ideal solution to practice sending the code and improve your speed – is a light-weight portable unit powered by one AA cell (1.5V/1.2V) and is based on the well known ‘Joule-Thief’ concept. There is little to say...