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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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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.

Reference materials

Reference materials

Reference materials. Articles with illustrations and detailed explanations:

8-bit microcontrollers with USB interface for LCD and CRT monitors ST72774 / ST72754 / ST72734

American coaxial cables

AMIDON ring magnetic circuits

Analogs of miniature galvanic elements (nomograms)

Arrow Indicators

Audio Power Amplifier with TDA1562Q Diagnostic Tools

Bipolar and field effect transistors

Broadband loudspeaker heads


CAN-bus transceivers

Capacitors. Code Marking

Capacitors. Color Marking

Capacitors. Temperature coefficient of capacity

Capacitors. Tolerances

CDs: Technologies and Standards

Cellular Standards

Ceramic filters

Chemical current sources

Chips for data transmission over the radio channel

Chips for identification systems

Chips for protecting lithium batteries

Chips for television equipment ST63140, ST63142, ST63126, ST63156

Chips for Wireless Data Transfer

Chips. DVD Processors ESS ES4318, ES4408, ES4408FD

Chips. Operational Amplifiers and Their Analogs

Chips. ROHM AC / DC

Chips. Surround sound processors TDA3810

Chips. TDA8925 Pulse Audio Power Amplifier

Chips. Vage stabilizer 1158ENhh

Chipsets for building Spread Spectrum devices

Choosing a ballast capacitor

Coils on carbonyl rings

Color marking of capacitors

Color marking of contour coils of imported radio receivers

Color marking of fixed resistors

Color marking of import resistors

Color marking of imported capacitors

Color marking of resistors

Color marking of zener diodes and stabistors

Compact DC electromagnetic relays

Conductive compositions

Conformity of BQS TV, video, audio and remote control models

Contour coils of imported radios

Designation of foreign radio elements

Designations of imported microcircuits

Designations of imported semiconductor devices


Diode color marking

Double balanced mixer SA612A

Dual high-speed high-voltage optocoupler with TTL output

Dynamic heads for car speakers

Electret microphones

Electret microphones. Wiring Diagrams

Electrical Safety

Electrodynamic heads and speakers

Electronic components for surface mounting

Electron-optical converters

EU24 constant inductances

Features of assembly and installation of electrical circuits

Field effect transistors

Field effect transistors. Color marking and analogues

Field effect transistors. Conventions

Field effect transistors. Couples and assemblies

Field effect transistors. Scope

Flat diaphragm loudspeakers

Fluorescent lamps Part 2

Fluorescent lamps. Part 1

Fluxes, pastes, inks, varnishes

Foreign coaxial cables

Foreign low-frequency integrated Amplifiers

Foreign Transistors

French coaxial cables

Frequency selection instruments

Global standards for sockets, plugs, Vage and current frequency

High Vage Rectifier Diodes

High-speed high-voltage optocoupler 80 ns / 3000 V

High-voltage aluminum capacitors for power electronics

Household electrical meters

ICM7555ISA - IRF4905S Transistors

ICs for household appliances M24C128, M24C256, M24C32, M24C64, M24C16, TDA7318, TDA7309, TDA7313

ICs. AN7168 Integrated Low Frequency Amplifier

ICs. Digital Signal Processors TDA755X

ICs. MPEG 2.5 LAYER III STA013 / 013B / 013T Audio Signal Decoders

ICs. SAA7706H Digital Signal Processor for Car Audio

Import LEDs

Import radio elements

Inductances. Code Marking

Inductances. Color Marking

INF8577CN LCD Indicator Control Chip

Infrared LEDs

Infrared Photodiodes

Integrated Circuit Multipurpose Vage Regulators

Integrated circuits of foreign countries and their analogues produced in the USSR

Integrated Switches: Parameters, Application

Integrated Vage Regulators 78xx, 79xx, 78Lxx, 79Lxx, LMxxx

IRF510 Transistors - IRF540S

IRF610 Transistors - IRF644

IRF710 Transistors - IRF744

IRF820 Transistors - IRF840S

IRF9Z14 Transistors - IRFD420

IRFL014 Transistors - IRFP264

IRFP344 Transistors - IRFP460 LC

IRFP9140 Transistors - IRFPS37N 50A

IRFR010 Transistors - IRFUC20

IRFZ14 Transistors - IRFZ48N

IRL2203N Transistors - IRLR3103

IRLU014 Transistors - MTP6NA 60FI

Japanese bipolar transistors - parameters, replacement

Japanese coaxial cables

Kenwood car audio connectors

KT222 series transistor assemblies

KT6113 series transistors

KT8156 series transistors

Laboratory autotransformers of the TDGC2 and TSGC2 series

LED indicators


Legend wire diameter and sheet thickness in foreign editions

Linear microwave transistors for power Amplifiers

LinkSwich microcircuits for building AC / DC-converters

Liquid Crystal Indicators

List of abbreviations and terms used in schemes

LM7001 series microcircuits for the frequency synthesizer

Loop coils imported radios. Color Marking

Low-frequency loudspeaker heads

Magnetic materials and magnetic cores for switching power supplies

Manufacturing fuses for any current

marking of capacitors and resistors

MAXIM Amplifiers and comparators

MC34118 multifunctional microcircuit chips for telephone sets

Memory chips and their equivalents

Methods for terminating the cable into high-frequency connectors

Microcircuits. Operational Amplifiers

Microcircuits. RHOM AC / DC Converters

Microcontrollers of popular families


Microphones. Part 1

Microphones. Part 2

Micropower Comparators TS3V339 Series

Micropower Optocoupler for AC 5P32E

Mid-frequency and high-frequency loudspeaker heads

Minifit-Jr electrical connectors manufactured by Molex

Mnemonic LED Indicators

Modern fuses

Modern silicon photodiodes

Motors on MTX-90

MPEG Standards

MULTIFUSE BOURNS self-resetting fuses

Network Adapters

Optical cables in a ground wire

Optical communication cables of foreign production

Optocouplers. Part 1

Optocouplers. Part 2

Optoelectronic relays


Organic Dielectric Capacitors


Phototransistors (1)

Phototransistors (2)

Phototransistors (3)

Piezoceramic filters

Piezoelectric resonators

Pinout common bipolar and field-effect transistors (1)

Pinout common bipolar and field-effect transistors (2)

Popular foreign connectors

Power Amplifier AF TDA7384A

Powerful low-voltage microwave transistors for mobile communications

Pulse lowering stabilizers

Pyroelectric IR Radiation Sensors

Reed switches

Resistors PHILIPS Code Marking

Resistors PHILIPS color coding

Resistors precision highly stable PANASONIC

Resistors with zero resistance and jumpers

Resistors. BOURNS Code Marking

Resistors. Code Marking

Resistors. Color Marking

Resistors. Custom color markings

SAMSUNG flash memory chips

SAW piezoelectric filters

Semiconductor Solar Panels

Semiconductor Vage limiters

Series of values of resistance and capacitance

Seven-segment and matrix indicators

Silicon photodiodes

Small-sized relays with sealed contacts

SMD components. Electrolytic capacitors for surface mounting. Code Marking

SMD components. Surface Mount Enclosures

SMD components. Surface Mount Housing

SMD components. Through numbering of the most popular cases

SMD transistors

SONY car audio connectors

Sound self-diagnosis of the computer when turning on

SPST chips: analog Maxim MAX4706 and MAX4707 keys


Switching elements of foreign production

Symbols of SMD transistors

Symmetric Thyristors

TDA88xx video processors

Television Standards

The magnitude of the mains Vage and frequency in countries around the world

The main parameters of the disk EMF at 500 kHz

The main parameters of THOMSON, PHILIPS and NOKIA color color tubes

The main types of code sequences of modern communication and navigation systems

The units of measure used in electrical engineering and electronics

Thyristors and Dinistors

Trademarks of manufacturers of microcircuits

Transferring AWG to SI

Transformers of the CCI Supplement

Transistors IRF9510 - IRF9640

Transistors IRFD9014 - IRFIBC40 GLC

Transistors P4NA 80FI - VN2222L

Transistors. Code marking. Building КТ-26 (ТО-92)

Transistors. Color and code marking

Transistors. Marking Building KT-27 (TO-126)

Transistors. Powerful microwave transistors Philips Semiconductors

TSA6060 Frequency Synthesizers

Turn on low-voltage electrolytic capacitors

TV standards

Two schemes of simple oscillating frequency generators

Two-crystal light-emitting diodes

Tyco Electronics / A MicroSRC Connectors

Ultrasonic delay lines

Ultraviolet lamps

Unified Power Transformers - Reference

Unijunction Transistors

Universal analog programmable microcircuits: selection of elementary functional units

Use of solid state optoelectronic relays of average power

voltage regulator chips


XILINX FPGA chips: VIRTEX series

Yamaha car audio connectors

Zener and Stabistor