Science

Projects for beginners, articles on electronics and electrical science, Tesla coils, electrostatic devices, and resource links for the hobbyist and educator.

Circuits on solar power, micro power FM broadcasting, a temperature controlled NICD charger, and more from Forrest Cook; electronics links.

An archive of electronic circuits divided into categories such as power supplies, auto, computer circuits, sound/radio.

Audio, PC, games, phone, oscillator, power, test equipment, and weather related schematics and information.

A collections of categorized and cross-referenced electronic circuits or schematics.

How to make a very nice and stable frequency synthesizer from Harvard. Includes schematics, block diagrams and parts lists. Very through design.

Electronic circuits, kits, do-it-yourself, circuit diagrams, design and electronics hobby schematics from alarms to test circuits.

A simple closed caption decoder for your TV. Schematic, BOM, theory of operation.

Nearly every issue is listed from 1988 to 2001, software code.

How to make a spectrum analyzer with tips and advice on component selection and architecture. A large number of circuit ideas and schematics, with sources and construction tips.

An archive of tube and transistor amplifiers and information, mostly for music applications.

Electronic circuits with full description, diagrams and PCB, electronics articles, links and downloads.

Dedicated to inexpensive Do-It-Yourself music electronics, electronic salvage/recycling, and alternative energy projects.

Includes information about safety, power supplies, Jacobs Ladders, circuits, IR detectors, power oscillators, and schematics.

Electronic circuit archive, FAQ, freeware, resources directory.

Electronic circuits and projects designed by Tomi Engdahl. Audio, video, computer, data communication, light effects and controllers, power supplies, and telephone circuits.

A collection of electronic schematics and projects, index of tutorials and design software.

Electronics diagrams: pro music equipment, vintage tube amplifiers and other; chat room.

A searchable database of schematics and electronic circuit designs such as alarms, audio/video, auto, etc.

Technical references and schematics archive: alarm, audio, auto, etc.

An electronic forum. Includes a collection of small electronic circuits.

Television schematics for electronic specialists who repair TV sets.

A search engine for electronics circuits.

Schematic a construction of a 60kHz time code receiver and clock. Includes PIC programmer and LED clock display.

A collection of electronics projects and circuit diagrams. How to build your own electronic gadgets.

Fully documented electronic projects, such as stand alone microcontroller circuits and nixie, numitron and decatron clocks.

A Wiki-based archive of electronic circuits for hobbyists.

TV terminal design. Connects TV and PC keyboard to a microcontroller based device.

Electronic circuit schematic diagrams collection.

Project to build a real analog synthesizer using easy to get components.

Electronic schematics, circuits, projects, tutorials and software for hobbyists.

Contains electronics projects and guides, including microcontroller programming.

A collection of electronics circuits, microcontroller projects, and tutorials for hobbyists.

Site with simple circuits that are easy for beginners in electronics to build and understand

Collection of circuits built around specific components and functions