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Free online library on electronics Free library:
Encyclopedia of electronics and electrical engineering
Books and magazines
Schematic diagrams and service manuals
Reference books
News of science and technology

Free online library on electronics Free encyclopedia of electronics and electrical engineering:
Alternative energy sources
Assemblies of amateur radio equipment
Audio equipment
Audio-fidelity and speaker volume controls
Ballasts of fluorescent lamps
Bells and audio simulators
Chargers, accumulators, galvanic cells
Citizens' Band radio
Clocks, timers, relays, load commutators
Consumer electronics
Current controllers, voltage and power regulators
Data communication
Digital equipment
Electric installation work
Electric meters
Electric motors
Electric power supply
Electrical safety, fire safety
Electrician's reference book
Electrician's tools
Electricity for beginners
Equipment protection from emergency operation, uninterrupted power supply units
Field intensity detectors
Fluorescent lamps
For a musician
For an electrician
For an inexperienced radio amateur
For radio amateur constructors
For students
Frequency synthesizers
Grounding and neutral grounding
Halogen lamps
High-frequency power amplifiers
Home, garden, farmland, hobbies
Household appliances
Indicators, detecting devices, metal detectors
Infra-red equipment
Lightning protection
Measuring equipment
Microphones, wireless microphones
Mobile communication
Portable radio stations
Power amplifiers
Power controllers, thermometers, thermostabilizers
Power supply units
QRP equipment
Radiation indicators
Radio amateur computation
Radio amateur technologies
Radio control
Radio reception
Radio stations, transceivers
Reference materials
Security and alarm system using mobile communication
Security devices and alarm systems
Sound systems
Sound-to-light units
Upgrade of radio stations
Use of microcircuit chips
Various electronic devices
Voltage stabilizers
Voltage transducers, rectifiers, inverters
Welding equipment

Free online library on electronics Useful articles and background materials:
Art of audio
Art of video
Batteries and rechargeable batteries
Big encyclopedia for children and adults
Biographies of great scientists
Children's scientific lab
Entertaining experiments in chemistry
Entertaining experiments in physics
For builders and handymans
For lovers of travel. Tips for tourists
Fundamentals of health and safety
Fundamentals of medical first aid
History of engineering, technology, objects around us
Home workshop
Industrial technology at home - simple recipes
Labor protection
Lecture notes, cheat sheets
Life of great physicists
Miracles of nature. A fascinating journey around the globe
Spectacular tricks and their solutions
Personal transport: land, water, air
Riddles, puzzles, trick questions
Scale modeling
The most important scientific discoveries
Tools and mechanisms for agriculture
Typical labor protection instructions (Job descriptions)
Visual illusions

Free online library on electronics Free magazines:
A Radio. Prakticka Elektronika magazine
Amaterske Radio magazine
Circuit Cellar magazine
Electronique et Loisirs magazine
Electronique Pratique magazine
Elektor Electronics magazine
Elektronika dla Wszystkich magazine
Elektronika Praktyczna magazine
Everyday Practical Electronics magazine
Evil Genius magazine
Funkamateur magazine
Nuts And Volts magazine
QEX magazine
QST magazine
Radiotechnika Evkonyve magazine
Servo magazine
Stereophile magazine
Радио Телевизия Електроника magazine

Free online library on electronics Free audio, video, tvs schematic diagrams and service manuals:
Popular audio
Popular car audio
Popular DVDs
Popular faxes
Popular monitors
Popular monoblocks
Popular phones
Popular TVs
Popular video cameras
Popular video recorders and video players

Avest TVs
Beko TVs
Elenberg, Cameron, Cortland domestic radio electronics
Erisson TVs
Gorizont TVs
Rainford TVs
Rekord TVs
Roadstar TVs
Rolsen TVs
Rubin TVs
Vestel TVs
Vitjaz TVs

Power supply units for TV sets and video equipment

Free online library on electronics Free mobiles schematic diagrams and service manuals:
Benq-Siemens mobiles
Eastcom mobiles
Ericsson mobiles
Fly Bird mobiles
LG mobiles
Maxon mobiles
Mitsubishi mobiles
Motorola mobiles
Nokia mobiles
Panasonic mobiles
Pantech mobiles
Samsung mobiles
Sharp mobiles
Siemens mobiles
Sony-Ericsson mobiles
TCL mobiles
Voxtel mobiles

Free online library on electronics Free household appliances schematic diagrams and service manuals:
Beko household appliances
Braun household appliances
Candy household appliances
Elenberg household appliances
Elica household appliances
Gorenje household appliances
Hansa household appliances
Merloni household appliances
SEB household appliances
Snaige household appliances
Stinol household appliances
Universal household appliances
Whirpool household appliances

Free online library on electronics Free electric tools schematic diagrams and service manuals:
Bocsh electric tools
Makita electric tools

Free online library on electronics Free electric tools schematic diagrams and service manuals:
Bocsh electric tools
Makita electric tools

Free online library on electronics Free reference books:
Collection of dumps
Correspondence of models and chassis
Horizontal-output transformers by HR company
Horizontal-output transformers by Konig company
Integrated circuits, microcontrollers and transistors
Mechanisms of audio and video equipment
Radio components by Atmel
Radio components by Cirrus Logic
Radio components by Maxim
Radio components by Microchip
Radio components by Mitsubishi
Radio components by Motorola
Radio components by National Semiconductor
Radio components by Panasonic
Radio components by Philips
Radio components by Rohm
Radio components by Samsung
Radio components by Sharp
Radio components by Sony
Radio components by Toshiba
Remote controls for TV sets and monoblocks

News of science and technology




Order of schematic diagrams and service manuals Order of diagrams

Schematic diagrams to order:
World air conditioners
World audio
World car audio
World DVDs
World faxes
World fridges
World microwave ovens
World monitors
World monoblocks
World phones
World photo cameras
World projectors
World TVs
World video cameras
World video recorders
World washing machines

Have fun! Have fun!
Assembling the Rubik's Cube
Did you know?
Entertaining experiments at home
Funny puzzles
Interactive flash games
Optical illusions
Spectacular tricks and their solutions


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Natalya Kuznetsova

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Free online library on electronics

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Free online library on electronics Free online library on electronics, Free encyclopedia of electronics and electrical engineering

All articles of the Free encyclopedia of electronics and electrical engineering are listed in alphabetical order. For automatic translation of articles into your native language, please use Translate it! form in the top left corner of the page.



LEDs. Articles with illustrations and detailed explanations:

A simple power source for BP2857D for LED lamps

A small heart on LEDs

Advanced power supply on UCC28810 chip for LED lights

Alarms on the flashing LED

An economical light on high-power LED lamps for amateur radio installation table

Animated pictures on the LED matrix

Automatic switch LED

Automatic switching of LED garlands

Chip drivers for super-bright LEDs

Christmas tree lights with flashing LEDs

Circuit for powering 5 W LUXEON V type LEDs

Contactless switch based on a PIR module

Delay devices for long time intervals

Design and principle of operation of LEDs

Dual-Channel LED Flash Controller

Dual-frequency generator with flashing LED

Economical LED lamp for the landing

Emergency light using LED strip

Features of power white LEDs

Firefly on the two-color flashing LED

Flashing LED alarms on CMOS chips

Generator for controlling a multi-color LED

Generator for powering the LED

GIR with LED indicator

Homemade miniature LED ground lamp

LED beacon

LED beacons

LED bicycle light

LED car stroboscope

LED clock

LED cycling lamp

LED Dimmable Nightlight

LED Emergency Light

LED Festoon

LED flashing light

LED flashlight

LED flashlight from the calculator

LED Floodlight

LED indication in the key switch

LED indication of apartment call modes

LED indicator in the remote control

LED indicator in the switch

LED lamp (1)

LED lamp (2)

LED lamp for a refrigerator

LED lawn light includes electrical appliances

LED LED Light - from compact fluorescent lamp

LED line of running lights

LED Night Light

LED power requirements

LED probe p-n transitions

LED rechargeable flashlight

LED Running Lights

LED string switch

LED strip in the desk lamp

LED Vage indicator

LEDs. The light of the future today

Light dynamic device Traveling wave

Low-voltage LED power supply

Mains power supply of K48 LED lamp

Matrix LED display

Modern high-efficiency LEDs

Network enable indicator on a two-color LED

Network LED lamp with power supply on VIPer22A chip

Network LED Light

Nightlight, lamp

On-Board LED Vmeter

Power LEDs from 1.5 V

Power LEDs from the network 120-230 V

Power supply for an 8W LED lamp on the HV9961

Power Supply for LED Lamp

Powerful LED lamp

Principles of building high-power LEDs

Principles of receiving a white LED glow

Problems of modern LEDs

Pulse generators on the flashing LED

Refinement of the LED flashlight

Refinement of the weekly eight-channel timer with the WEB interface

Restoration of the performance of LED car lamps

Running fire with 10 LEDs

Simple LED lamp for the landing

Super-bright LED - the basis of energy-saving lighting

Super-bright LED in the flashlight

Switch LED garlands

Switch of three garlands on two-color LEDs

The power source on the UCC28810 chip for an LED lamp with a power of 18 ... 48 W

The structure of the LED

Two options for turning on the flashing LED

Two-channel light cord cable controller Duralight

Voltage converter for an LED lamp

Voltage Level Deviation LED