Electronics circuit sites
Note on using the circuits on the sites: There is no guarantee that the
circuits in the following sites are entirely correct or working.
Be sure you understand completely their posted information before you buy any parts.
Most of the circuits seem to be good ones, but there are circuit diagrams
with errors or essential information missing.
You can browse the circuits sites listed below to find lots of
interresting circuits. If you are interrested in quicly browsing
for a specific circuit, you can use circuit sites search engine
to search for the circuits listed in those sites.
Circuit site search
This circuits sites search
engine tries to index the circuits in those sites so you can search
the contes of circuit sites listed below
(it has most of the circuits from those sites in database, but not
all of them because some sites are not automatically indexable).
Circuit site list
- 4QD Electronics Circuits Reference Archive - 4QD's pages of interesting circuits with wide selection of small circuits useful as building blocks for electronic systems
- Aaron's Electronic Circuits - light, laser, sound, radio, PSU, car
- Amateurfunk- und Elektronik-Projekte - amateur radio electronics project in German
- Amazon Electronics Free Circuits - audio, computers, controllers, testers, light effects, microcontrollers, power supplies, radio, security, timers, circuit can be also bought as complete kits from Amazon Electronics
- Analog Music Zone Guitar Effects Schematics - guitar effects, compressors, microphones and effects
- Andrew Buckin Projects - VGA generator, SVGA generator, IDE2LPT, CPLD projects
- Applications of neon glow lamps - some applications of neon glow lamps
- Aquarium Related Electronics - pH meters, thermometers
- Audio Designs Guide
- Audio Electronics Page - amplifiers, preamplifiers, power supplies
- Beyond Logic - PC interfacing projects
- Bob Blick's Assorted Electronics Projects
- Bowden's Hobby Circuits - collection of electronic circuits for the hobbyist or student
- Brainstorming page - electronics hobby circuits, page is in German but you can try to access it using automatic English translation
- Burning Flux - musical instruments and audio/video projects
- Circats - simple electronics circuits
- Circuit Exchange International - schematics on radio and electronics, circuit analysis, circuit theory and electronic design
- Circuitos Electronicos - electronics circuits, text in Spanish
- Circuits from Forrest Cook - NiCD charger, radio, audio, microprocessor
- Circuits for the Hobbyist - many quite simple circuits
- Circuit Lab - lots of different circuits from Electronics for You magazine
- Classic and Vintage Audio Circuits Page - some audio equipment circuits and links
- CommLinx Solutions circuit links - Links to hundreds of circuit schematics available on the Web formatted onto a single convenient page
- Cool Schematics - solid state and tube guitar amplifier circuits
- CyberCircuit Circuit Archive - many different circuit ideas
- CXI Schematics - alarm, security, control, interfacing, music effects, radio, power supplies, switching, test gear
- Dan Fraser's Electronic Info & Schematic Page - audio circuits, monitor repair
- DIBs Circats - simple circuits in GIF and PDF format, audio and microroprocessor related circuits
- Die Xedox Elektronikseiten - some electronics project, text in German
- Discover Circuits - a collection of schematics quick solutions for electronic engineering problems compiled by David A. Johnson
- DIY Audio Amplifier Page - audio power amplifiers
- DMZ Schematics
- Dr Bob's Electronic Projects - amplifier circuits, chargers, flashers, meters, motor, oscillator and power supply
- DTE Microsystems Simple Circuits - LED circuits, microphone amplifier, testers, sensors
- Dustbin - amplifier, power supply, light controlling, microcontroller
- EDN's Design Ideas Archives - circuit archive which you can access with search engine
- Effect Rack Unit - contains very many guitar effect unit circuit diagrams
- Effectronics Schematics - audio processing and effect circuits
- ELEC.de - large circuit page, text in German, you can use automatic translation to English
- Electronics and schematics - some PC parallel port and RC servo circuits
- Elecronics Projects for R/C
- Electric Model Aircraft Circuit Diagrams
- Electronic Circuit Beans Collection - small circuit useful as building blocks, oscillators, power supplies
- Electronic-Circuits for Model-Aircrafts - contains also some microcontroller projects
- Electronic Cookbook Archive - place for electronics enthisiasts to share circuit ideas with others
- Electronic Projects Online - contains 25 of the most popular magazine projects designed by Paul Stenning for various electronics magazines between 1993 and 1997
- Electronics 2000 Project Pages - projects with circuit board, theoritical diagramm and description, many circuit from Smartkit electornics kits
- Electronics and Radio Section - radio, tube audio, tesla, software
- Electronics circuit designed by Tomi Engdahl - audio, video, computers, telephone, light effects, measuring, power supplies, electronics documents
- Electronics circuits / do-it-yourself homepage - this site contains thousands of electronics circuits & do-it-yourself circuits relating to a wide range of categories like audio,music,home/garden related,computer hardware,radio,robotics etc.
- Electronic Circuits for the Hobbyist - simple circuits, radio, flasher, amplifier
- Electronics for You Circuit Lab - circuits and short articles describing them
- Electronics Projects by Paul Taylor - some simple electronics projects
- Electrical circuits for model railroad hobbyists - light flashers, constant light, power supplies
- Electronic Cookbook Archive - very good electronics circuit archive, also available using FTP
- Electrical Engineering Circuits Archive - lots of small circuits, ideas and datasheets
- Electronic Design Ideas For Design - many useful circuit ideas
- Elektroniikan harjoitustöitä - simple electronics circuits, instructions in Finnish
- Elliott Sound Products Audio Design and Information Pages
- ESP Audio Projects - power amplifiers, power supplies, crossovers, miscial instrument circuits, mixers,
- FC's Electronic Circuits - solar power circuits, FM broadcasting, NiCd charger and other circuits
- FC's Solar Circuits
- ftp.armory.com - microcontroller information and circuits
- FM VERÝCÝLER VE KATLARI - FM transmitters circuits and applications, power amplifier drivers and output stages, stereo coder and pll stages or fm transmitters
- George Krilov audio schematics page - page is about transistor audio power amplifiers, contains articles about power amplifiers shematics, design, construction and SPICE simulation, page is partially in English and partially in Russian
- GEO's Effect Schematics - collection of vintage and new-design effects and musical related DIY
- Glolab Free Schematic Diagrams - wireless circuits, motion detector, encoder, decoder, PIR, RF, telephone, video
- Gonz Projects - power supplies, automation, signal generators, frequency meter, text in French
- Guitar Effects Boxes - guitar effect schematics and articles
- Guitar-related Circuits - effect circuit collection
- HAM radio circuits at nic.funet.fi - some circuit for radio amateurs
- Hardware Web - software, links and midi circuits
- Harry's Homebrew Homepage - very many radio related projects
- Harry's Homebrew Homepage by Harry Lythall SM0VPO/G4VVJ
- HeadWize Projects - many headphone amplifiers and related circuits
- Hobby Electronics Circuit Collection - growing list of simple, useful circuits that you can experiment with or use as building blocks in your own designs
- Electronic projects by Roberto Barrios - HAM radio programming cables, Luxman I Bus Interface, SPDIF adapter, serial port power booster, radio interface box
- Electronics Hobby Projects
- Homebrew Test equipment - test equipment built by experimenters and amateur radio enthusiasts
- Homebrew Test Equipment and Software - several projects which will allow you to build your own RF design test equipment
- Ian's Circuits - selection of useful simple electronic circuits: oscillators, power supplies, analogue circuits and digital circuits
- Ideaport - electronics circuit for school projects, text in Finnish
- Imagineering On-Line Magazine Hobby Circuits - wide variety of circuits, tens of circuits
- JF1OZL QRP Hand Made Radio - very many amateur radio links
- Kelly Kohls, N5TLE Homepage - DMX 512 Light control circuits
- Laurier's Handy Dandy Little Circuits - site for electronic hobbyists, includes all kins of small electronics hobby circuits
- Library of Practical Electronics - circuits and articles from sci.electronics.* newsgroups
- Linear Electronics Troubleshooter- contais lots of circuits from power supplies and pulse generators to PLC laddler logic controlling
- Maxim Vorobiov Site - HiFi preamplifier, HiFi power amplifier, light control
- Microchip Net resources - PIC project link list
- Mihai's Downloads - Soundcard docs to FPGA docs, EPP adapter, Mouse design and so on
- Model Railroad Electronic Circuit List
- Mycal's Micro Radio Page - radio transmitters, antennas and amplifiers
- Nathan's Audio And Electronic Webpage - audio circuits
- Nick's Circuits collection - infrared, telephone, sound, smartcard, filters
- Olec Electronics & Computer Club Hobby Electronics Circuits & Ideas
- Open Collector - pages intended to encourage the growth of Open Hardware and to provide a resource for those working on it
- Ozitronics Audio Amplifiers & Voice Recorders - kit catalogue which includes full circuit diagrams
- Packet BBS NL3ASD Amsterdam - schematic section contains lots of HAM related circuits
- Peter's Electronic Plans - FM transmitters, TV transmitters, bugging devices and more
- Pro Audio Equipment Schematics Page - Alan Garren's excellent listing of vintage gear schematics including API, UREI, Altec, RCA and more
- Prolectron Electronics Schematics - electret microphone circuits, opamp circuits and simple transistor circuits
- RadioLockman database of circuit's links
- Randy Linscott Projects of the Month - many interresting projects
- RED Free Circuit Design - amplifiers, measuring equipments, health circuits, hobby model circuits, music circuits
- Richard Steven Walz's Electronics Circuits FTP site - over 900 electronics ascii files
- Rollins World Wide Web Circuits - simple electrical circuits for beginners
- Rutger's World of Model Railroad Electronics
- Saint Audio Do It Yourself Zone - small circuits, speakes, hifi circuits, tybe amplifiers, DIY cables
- Sam's Schematic Collection - various schematics and diagrams
- Science & Technology of high voltage generators - A page on high voltage multipliers, a circuit on driving flybacks (with a large capacitor as protection) and power supplies
- SDS Labs Schematics - hifi circuits, tube amplifiers, audio DACs
- Sheldon's Audio Designs - high performance audio circuits like amplifiers
- Simple Circuit - lots of circuits in many categories
- Snock's High Voltage Page - detailed explanation on flyback, ignition coil circuits and pictures of various transformers
- SP-Elektroniikka kytkennät - light controlling, amplifiers, meters and remote controllers, text in Finnish, circuti board design available for most of projects
- The Electric Wave - selection of various hobby circuits
- The Electronic Resource - IO interfacing via ISA card or parallel port, single board computers, robotics
- The GEO-Fex collection of vintage and new-design effects and musical related DIY
- The Guitar Effects Oriented Web Page - FAQs and circuit diagrams
- VK2TIP Ian Purdie's radio design tutorial pages - for amateur, ham radio, electronic project enthusiasts as well as the electronic hobbyist
- W.A. Steer - ADC, video digitizer, RS232 solutions, science experiment circuits
- WebEE Schematics Page - large collection of circuits
- WE-MAN's Electro stuff - many circuits and documents
- Wenzel Associates Technical Library - application notes and circuits
- Wenzel Associates Circuit Notebook - for Engineers and Hobbyists
- World Of Electronics - electronics projects in German, electronics display projects
- Xexorz Schematics - radiation meter, radio circuits, IR circuits, light circuits
Other useful links
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