Circuit Colllection: Audio, Sound, Music, Pre-amp, Power Amplifier, Audio Processing, Generator & Sound Effect, Control, Musical, Measurement & Metering.
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Here is a list of Audio related projects I found on various
sites. Many of them only contain circuit/schematic, but several is a complete
project, including detailed comment, PCB file and even photos.Â
The projects listed here is not mine. I just collect them and
arrange the link in my place. Credit for him/her who builds and publishes the
projects. Please also notice what the owners say about copyright stuff in
their pages.
I noticed that some of the hosting servers linked here is not
very stable. If you find broken link, let me know.
This page will be updated when I found new project somewhere.
- Digital Volume Control
- FET Audio
Mixer
Transistor Organ- 50 Watt
Amplifier - 8 Note
Tune Player - 22 Watt
Audio Amplifier - Sound
Level Meter
Microphone Mixer (Anatoly
I. Shikhatov)- Tone
Control - Guitar Fuzz
Effect - Stereo
Tube Amplifier (Weslee Kinsler) - Electronic
Stethoscope
Updated on July 11, 2006
- Microphone
amplifier - RIAA
phono amplifier - Low impedance
microphone amplifier
Phono preamp-
Masthead preamp -
Preamplifier for microphone or guitar use -
Simple microphone preamplifier
Tube microphone preamp-
Simple Stereo Electret Microphone Preamplifier -
Simple Stereo Electret Microphone Preamplifier -
Phono Preamp -
Simple microphone preamplifier -
ECM Mic preamp -
Hi Fi preamp - Balanced
microphone preamp -
Electret mic amplifier -
Audio preamplifier -
Vacuum Tube Microphone Preamp - FET
Preamp Cable
Audio preamp
Updated on July 20, 2006
- Two
transistor audio amplifier - Personal
stereo audio amp - Headphone
amplifier - 1.5W
Audio amplifier - Low-level
audio amp - 10W
amplifier - 80W
amplifier - LM383 12V
Amplifier - 18W
Audio amplifier - 25W
MOSFET amplifier
Headphone amplifier
Portable headphone amplifier- 2W
amplifier -
4W
amplifier - 8 watt
audio amp - 20W
Amplifier - 50W
Amplifier -
100W RMS Amplifier -
2-Channel Power Amplifier -
25W MOSFET audio amplifier -
50W audio amplifier using ICL8063 -
Amplified ear for surveillance -
Push-Pull Class A Amp using type 5687 dual triodes -
Push-Pull Class A 2A3 Stereo Amp -
Single Ended Class A2 SV811-10 Stereo Amp -
Audio amplifier output relay delay
Spatial Distortion Reduction Headphone Amp- HeadBanger
Headphone Amp -
2W Amplifier -
TDA2030 8 Watt amplifier - Headphone monitor
amp - 50W audio
power amplifier -
High quality exponential VCA ?
16 Watt amplifier- 8
Watt amplifier - Power
amp schematic (PDF) - 20 Watt
Class-A Power Amplifier - El-Cheapo -
A Really Simple Power Amplifier - Single Chip
50 Watt / 8 Ohm Power Amplifier - Hi-Fi
Headphone Amplifier - 100W Guitar
Amplifier - Death of Zen
(DoZ) - A New Class-A Power Amp - Soft-Start
Circuit For Power Amps - Thermo-Fan
To Keep Your Amp Cool - Audio Amp
Output Power Limiter - 55W
(Originally 75W) Power Amplifier - 300W
Subwoofer Power Amplifier - 20 Watt /
Channel Stereo Power Amplifier -
Mini bench amplifier (LM386)
12 Watt Valve Guitar Amp
Updated on July 21, 2006
Electronic siren- Two-tone
siren
Underwater microphone- Code
practice oscillator - Noise
generator
Electronic whistle-
Twin-T Audio Sine Wave Oscillator -
1.5V Audio Amplifier -
Low Power Op-Amp - Audio Amp (Intercom) -
555 Tone Generator (8 Ohm Speaker) -
3 Transistor Audio Amp (50 milliwatt) -
Low Frequency Sinewave Generator - Automatic
Charger for Battery Operated Hi-Fi Preamps
Audio level indicator
Room noise detector
Amplifier timer
Bell ring generator
Amplified ear
Precision audio millivoltmeter
Six-channel Mixer and Amplifier-
Audio Signal Source - Analog VU meter
- Voltage controlled
amplifier - Audio graphic
equaliser - Intercom preamp
- FET
audio mixer
Microphone mixer- Tone
control
Digital volume control
Sound level meter
Three band Active Tone Control
Automatic gain control (AGC) circuits
Audio frequency meter
Bull Horn
Sound Mixer/Amplifier-
Very loud beeper (PDF) -
Digital noise generator (PDF) -
Tone display system -
Tube amplifier -
Condenser microphone hookup -
Phase shifter -
Paradoxical Sound Syntheizer -
Digital volume control -
Electronic attenuator -
Speech recorded using ISD2560 -
Automatic loudness control -
Three channel audio spectrum analyzer -
Base / treble control circuit using LM1036N -
Cuckoo sound generator -
Room noise detector - Various
tube crossover circuits - Bias
circuits -
Audio line isolator -
Dynamic microphone to electret microphone input -
Line level signal to microphone input adapter -
Simple two line output combiner -
Electret microphone powering circuits -
Use amplifier phono input as line level input -
Speaker signals to line level inputs -
Spring reverb unit -
Sine wave generator
Simple amplifier-
3-Band equalizer -
6-Input mixer -
Door-phone intercom -
Stereo line driver -
Audio notch filer -
Peak reading audio level meter -
Tone control -
Speaker Microphone Circuit -
Electronic canary -
Electronic siren - Microphone
phantom power supply - Voltage
Controlled Mixer w/Modulator - Dual Voltage
Controlled Oscillator w/Modulator - Dual Voltage
Controlled Filter w/Modulator - Stereo Ducker
- MS Stereo Decoder
- MS Stereo
Microphone - RIAA Equalized Stereo
Phono Preamp -
Tube active crossover -
Improved PL tone decoder -
Magnetic cartridge amplifier -
LM358 preamp -
Sound detector
Tone detector-
Tone generator
Warbler
Voltage Controlled Panner- Low Noise
Microphone Preamplifier - Bridging
Adapter For Power Amplifiers - Simple
Surround Sound Decoder - Simplest
Ever Amplifier Bridging - Stereo Width
Controllers - Power
Amplifier Clipping Indicator - Phono
Preamps For All - Digital
Delay Unit For Surround Sound - Parametric
And Sub-Woofer Equalizer - High Quality
Sound Mixer - Loudspeaker
Protection and Muting - Direct
Injection Box for Recording & PA Systems - Minimalist
Discrete Hi-Fi Preamp - Signal
Detecting Auto Power-On Unit - Load Sensing
Automatic Switch - Amplifier
thermal protection - Active
Sub-Woofer and Controller - Balanced
Line Driver & Receiver - VU And PPM
Audio Metering - Variable
Amplifier Impedance - Linkwitz
Cosine Burst Generator - Low Noise
Balanced Microphone Preamp - Fast Audio
Peak Limiter - Subwoofer
Equalizer -
Surround Sound Decoder Mk2 -
Audio mixer - 8 Watt Audio
Amp
Updated on July 21, 2006
- Audible
metronome - Visual
metronome - Peak-reading
meters -
Octave screamer -
Amiga MIDI interface -
Apple Mac to MIDI synthesizer interface cable -
Apple Macintosh MIDI interface schematic (basic version) -
Apple Macintosh MIDI interface schematic (deluxe version) -
Standard MIDI to MIDI interface cable diagram -
Simple MIDI switcher -
MIDI interface / cable tester -
MIDI keyboard -
MIDI merger schematic -
25-pin PC serial port to MIDI synthesizer interface cable -
9-pin PC serial port to MIDI synthesizer interface cable -
Serial MIDI interface -
Microcontroller MIDI interface -
MIDI keyboard circuit -
Spring reverb unit -
MP3 Player
Metronome and pitch generator
Mini metronome
Compact Flash / IDE MP3 Player MKI
Simple colour organ- Guitar
fuzz effect - 8 note
tune player - Colour
(Sound) Organ
Transisor organ-
BookPC Car MP3 Player -
Yet Another Mobile MP3 Player -
Wave Multiplier for music synthesizers
Vibrato Circuit for Guitar, Steel, Bass, Etc.-
Miniature metronome -
Zonk Machine and Treble Booster -
Simple line mixer -
Simple MIDI tester - MIDI Controller
Footpedal - DIY Serial
MIDI Interface (80C51/80C31 Version) -
Electronic metronome -
Sound Effects Generator -
Sound Effects Generator 2 - Digital
Guitar Tuner - Drum tone
oscillators - Analog MIDI
synthesizer - Spring reverb
- MIDI to CV
interface - Dual phantom
power pre-amp - Four channel fuzz
box - Theremin
controller - Vocal zapper
-
MIDI drum machine project
MIDI Drum Machine Analog Input Schematic
Guitar Reverb Pedal- Guitar
Tremolo Unit - Spring
Reverb Unit For Guitar - Ultra Simple
Bass Guitar Compressor - Vox AC30
Guitar Amplifier Simulator - Guitar
Vibrato Unit - Musical
Instrument (Expandable) Graphic Equaliser
Midibox 64
Source:
- http://hardwarebook.net
http://www.circuits-city.com/- http://aaroncake.net
- http://ee.washington.edu
- http://www.web-ee.com
http://www.electronics-lab.com
and many other sites… see the link.
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