There are 84 circuit schematics available in this category. Click here for all circuit diagrams. The Last circuit was added on Saturday, January 28, 2023.Please note some adblockers will suppress the schematics as well as the advertisement so please disable if the schematic list is empty.

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CircuitCategoryDate AddedOK?Votes 
Simple metronome using LM1458Music Status4 vote up vote down
Portable Mixer with high-quality modular design (9V battery powered)Music Status-1 vote up vote down
Guitar Reverb Effect Version 2Music Status-1 vote up vote down
Guitar Reverb PedalMusic Status0 vote up vote down
Metronome CircuitMusic Status1 vote up vote down
Build A Stereo SynthesizerMusicMay 07, 2024Status1 vote up vote down
Tremolo Effect Circuit for Electric Guitar or Other Musical InstrumentsMusicOct 03, 2024Status2 vote up vote down
Octave screamerMusicJan 26, 2025Status-3 vote up vote down
Percussion generator circuitsMusicFeb 09, 2025Status0 vote up vote down
Colour Organ based on a PIC16F84 microcontroller including schematics and source codeMusicMay 24, 2024Status3 vote up vote down
Wireless guitar transmitterMusicMay 25, 2024Status-7 vote up vote down
Music player built on microcontroller AT91SAM7S256 with ARM coreMusic Status-1 vote up vote down
Stereo Width ControllersMusicMay 07, 2024Status-1 vote up vote down
Digital Delay Unit For Surround SoundMusicMay 07, 2024Status-2 vote up vote down
100W Guitar Amplifier Mk II circuit diagramMusicJan 29, 2025Status-5 vote up vote down
Spring Reverb Unit For Guitar or KeyboardsMusicApr 14, 2024Status0 vote up vote down
Guitar Vibrato Unit Circuit DiagramMusicApr 14, 2024Status1 vote up vote down
Simple Colour OrganMusicSep 01, 2024Status1 vote up vote down
Guitar Fuzz EffectMusicSep 01, 2024Status0 vote up vote down
8 Note Tune PlayerMusicSep 01, 2024Status0 vote up vote down
Colour (Sound) OrganMusicSep 01, 2024Status0 vote up vote down
Simple Transistor OrganMusicSep 01, 2024Status0 vote up vote down
Wave Multiplier for music synthesizersMusicApr 27, 2024Status1 vote up vote down
Infinite melody for music synthesizersMusic Status0 vote up vote down
Simple line mixerMusicJan 26, 2025Status0 vote up vote down
Simple MIDI testerMusicJan 26, 2025Status0 vote up vote down
Homebuilt MP3 PlayerMusic Status0 vote up vote down
Zonk Machine and Treble BoosterMusicJan 31, 2025Status2 vote up vote down
Lossless portable digital audio player using the Microchip PIC32Music Status-1 vote up vote down
Drawdio - A very simple musical synthesizer that uses the conductive properties of pencil graphiteMusicOct 12, 2024Status0 vote up vote down
Real-world MIDI interface platform project including circuit diagram and PCB design filesMusicOct 12, 2024Status0 vote up vote down
Portable MP3 music playerMusicOct 12, 2024Status0 vote up vote down
Bassline synthesizer/sequencerMusicOct 12, 2024Status-3 vote up vote down
MIDI Controller FootpedalMusicAug 14, 2024Status0 vote up vote down
DIY Serial MIDI Interface (80C51/80C31 Version)MusicAug 14, 2024Status0 vote up vote down
Stage center reverb unit circuit schematicMusicApr 14, 2024Status1 vote up vote down
Spring reverbMusicJun 08, 2024Status0 vote up vote down
Drum percussion sensor schematicsMusicMar 05, 2025Status-1 vote up vote down
2 Note Ribbon ControllerMusicMar 05, 2025Status0 vote up vote down
Using the Hot Springs Reverb reverberation unitMusicMar 05, 2025Status0 vote up vote down
midi2cv8 to Drum Tone Board ConnectionsMusicMar 05, 2025Status-1 vote up vote down
Practical MS Decoder CircuitMusicMar 05, 2025Status1 vote up vote down
Drum Tone OscillatorsMusicMar 05, 2025Status-2 vote up vote down
Theremax Theramic Circuit SchematicMusicMar 05, 2025Status0 vote up vote down
Vocal zapperMusicJun 08, 2024Status-2 vote up vote down
Theremin controllerMusicJun 08, 2024Status2 vote up vote down
MP3 Player circuit schematicMusicMay 30, 2024Status1 vote up vote down
MIDI drum machine projectMusicJun 20, 2024Status0 vote up vote down
MIDI Drum Machine Analog Input SchematicMusicApr 27, 2024Status-1 vote up vote down
MIDI Pedalboard encoder circuit diagram and background informationMusic Status0 vote up vote down
Tone Filters for Electronic Organs (PDF)Music Status-1 vote up vote down
Compact DJ stationMusicMar 05, 2025Status0 vote up vote down
Two channel distortion circuitMusic Status2 vote up vote down
Marshall 18W adapted for use as a distortion stompboxMusicSep 30, 2024Status0 vote up vote down
Vox AC-30 Top Boost adapted for use as a distortion stompboxMusicSep 30, 2024Status0 vote up vote down
Ampeg SB-12 Portaflex adapted for use as a bass overdrive stompboxMusicSep 30, 2024Status0 vote up vote down
Distortion effects using an LM386 audio amplifier ICMusicSep 30, 2024Status1 vote up vote down
Matchless DC/30 adapted for use as a distortion stompboxMusicSep 30, 2024Status0 vote up vote down
Treble Booster/Overdrive including a perf board circuit layoutMusicSep 30, 2024Status0 vote up vote down
Schematic of a Rockman-like distortion. Schematic and PCB/perfboard layouts.Music Status0 vote up vote down
Mr. EQ - a simple, yet potent DIY equalizerMusicSep 30, 2024Status1 vote up vote down
New clipper circuit diagram (based on TL071 opamp)MusicSep 30, 2024Status0 vote up vote down
Versatile FET booster engine. Schematic and perfboard/PCB layouts.Music Status-1 vote up vote down
Peppermill overdrive - A simple, transparent overdrive. Schematic and PCB/perfboard layouts.MusicSep 30, 2024Status0 vote up vote down
Faux-phaser circuit with LFO and manual (wah pedal) modes. Schematic and and PCB layout.MusicSep 30, 2024Status0 vote up vote down
Fender Princeton adapted for use as a distortion stompboxMusic Status0 vote up vote down
Supro 16T adapted for use as a distortion stompboxMusicSep 30, 2024Status0 vote up vote down
Dual parallel buffered effect loops with blend control. Schematic and perfboard/PCB layoutsMusic Status1 vote up vote down
Marshall 100W Super Lead adapted for use as a distortion stompbox. Schematic and PCB layout.MusicSep 30, 2024Status1 vote up vote down
An ultra-flexible tonestack with clean boost. Schematic, photo, and PCB/perfboard layouts.MusicSep 30, 2024Status0 vote up vote down
Umble - A distortion stompbox, inspired by Dumble amplifiers. Schematic and PCB/perfboard layouts.MusicSep 30, 2024Status-1 vote up vote down
Boogie MkI adapted for use as a distortion stompboxMusic Status-1 vote up vote down
ThereminMusic Status-1 vote up vote down
Lil' Tiger Hammond AO-43 Organ to Guitar Amp ConversionMusicMay 19, 2024Status0 vote up vote down
Guitar Reverb PedalMusicJan 26, 2025Status0 vote up vote down
Daisy MP3 player projectMusic Status0 vote up vote down
Simple open source MP3 player with SD/MMC memory card supportMusicMay 30, 2024Status0 vote up vote down
Midibox 64MusicAug 09, 2024Status0 vote up vote down
Sound Effects GeneratorMusicNov 27, 2024Status1 vote up vote down
Sound Effects Generator 2MusicNov 27, 2024Status-3 vote up vote down
Building a Musical Sunrise Quartz Alarm ClockMusicOct 15, 2024Status0 vote up vote down
Chord EGG 2015: Remaking a PAiA ClassicMusicOct 15, 2024Status-1 vote up vote down
Retronome – A Versatile Analog Drum Machine for My Hammond OrganMusicOct 15, 2024Status3 vote up vote down
Theremin with MC1496MusicOct 20, 2024Status2 vote up vote down