Russian: Russian version English: English version
Translate it!
Search the Site

+ Search the Archive of technical magazine articles free 10,000 articles!
+ Search the Catalogue
+ Search the Data sheets Archive
+ Search the chassis and models Archive

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

© 2000-2021

Design and support:
Alexander Kuznetsov

Technical maintenance:
Mishell Bulah

Daniel Monchukin

Tatyana Anastasyeva

Natalya Kuznetsova

Contact us

When using materials of the website, link to https://www.diagram.com.ua is a must

created in Ukraine
created in Ukraine

Free online library on electronics

Search the Site

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.

Big Encyclopedia. Inventions and discoveries

Big Encyclopedia. Inventions and discoveries

Big Encyclopedia. Inventions and discoveries. Simple answers to difficult questions:

How and who opened the coffee?

How did chess occur?

How did dentures appear?

How did people learn to use weights?

How did the Edison American phonograph take place in France and Russia?

How did the fire start?

How did the first condom appear?

How did the first lamps appear?

How did the gas iron work?

How did the numbers come up?

How did the pins appear?

How did the plugs appear?

How did you start wearing gloves?

How many Jules Verne predictions were implemented?

How to make ice cream?

How true is Jules Verne predicted the circumstances of the first flight to the moon?

How was Teflon invented?

How was the calendar invented?

How was the coffee opened?

How was the dynamite obtained?

How was the glass opened?

How was the hole in the needle of the sewing machine moved to the sharp end?

How was the modern method of fraction production invented?

How was the telephone invented?

How was the tire first obtained?

In which scientific journal was the first report of the Wright brothers about their achievements?

Is it true that the feather from the left wing of the goose was better for writing?

Is it true that there was an elevator at the Coliseum?

Since when do handkerchiefs are used?

What did the first guns look like?

What human invention first broke the sound barrier?

What is Edison's invention every day?

What is the difference from an ordinary ballpoint pen for astronauts?

What is the merit of Colonel Samuel Colt to humanity, according to an American proverb?

What role did Russian emigrants play in the development of US aviation?

What should we thank Thomas Krapper for?

What technical innovation led to the defeat of the German submarine fleet in World War II?

What was the first streetlight intended for?

What were sweets in ancient Rome?

What were the first cars?

When and where did the first folding knives appear?

When did a pencil appear?

When did a person first use electricity?

When did a person start drinking milk?

When did boxing appear?

When did glasses come up?

When did the bath appear?

When did the books first appear?

When did the first bus appear?

When did the first icebreaker appear?

When did the first mailbox appear?

When did the first metal skates appear?

When did the first plane fly?

When did the first stoves appear?

When did the first submarine appear?

When did the lamps come up?

When did you start smoking tobacco?

When was aluminum foil invented?

When was the bread first baked?

When was the computer designed?

When was the first book written?

When was the first sound recording made?

When was the key first made?

When was the soap first made?

When was the umbrella invented?

When was the washing machine invented?

When was the wheel invented?

When were fingerprints first used for identification?

When were rockets first used?

When were the bricks first used?

Where and when did cricket and baseball appear?

Where and when did the crossword puzzles appear?

Where and when did the ribbon (packet) appear on cigars?

Where and when was aviation born?

Where did the candy come from?

Where did the caps come from?

Where did the first mirror appear?

Where did the first real map appear?

Where did the very first toilet flush to clean?

Where did they invent the guillotine?

Where did you come up with eyeglasses?

Where does ice cream come from?

Where does tea come from?

Where was the candle invented?

Where was the first newspaper printed?

Which home appliance advertised the idea of a hair dryer for the first time?

Which of the American presidents was an inventor?

Who and how for the first time showed that air has weight?

Who built the first car with a gasoline engine?

Who built the first car?

Who built the first channels?

Who built the first lighthouse?

Who came up with a parachute?

Who came up with the compass?

Who came up with the first map?

Who created the first aircraft?

Who created the submarine?

Who created the typewriter?

Who derived the theory of relativity?

Who discovered atoms?

Who discovered insulin?

Who discovered the atom?

Who discovered x-rays?

Who first created the hydrogen bomb?

Who first got the butter?

Who first started chewing gum?

Who invented cosmetics?

Who invented electricity?

Who invented matches?

Who invented math?

Who invented perfume?

Who invented plastic?

Who invented playing cards?

Who invented plumbing and sewers?

Who invented rubber boots?

Who invented scuba?

Who invented sign language?

Who invented stockings?

Who invented television?

Who invented the balloon?

Who invented the ballpoint pen?

Who invented the bike?

Who invented the brand?

Who invented the broomstick?

Who invented the camera?

Who invented the elevator?

Who invented the first dialing telephone?

Who invented the first gramophone record?

Who invented the first plow?

Who invented the helicopter?

Who invented the helicopter?

Who invented the microscope?

Who invented the microwave oven and how was it originally called?

Who invented the paper?

Who invented the pen?

Who invented the pencil?

Who invented the plane?

Who invented the refrigerator?

Who invented the shorthand?

Who invented the steam engine?

Who invented the telephone?

Who invented the telescope?

Who invented the thermometer?

Who invented the violin?

Who invented the zero?

Who invented typography?

Who is the author of the microscope?

Who launched the kite first?

Who made the car?

Who made the comics?

Who made the first balloon flight?

Who made the first engine?

Who made the first few hours?

Who made the first needle?

Who made the first photo?

Who made the first points?

Who made the first sewing machine?

Who owns the discovery of penicillin?

Who thought up the shoes?

Who was the first baker?

Who was the first cosmonaut?

Who was the first hairdresser?

Who was the first to announce that the earth revolves around the sun?

Who wrote the first encyclopedia?

Who wrote the first English dictionary?

Who, when and how was the first battleship invented?

Why are buttons on men's clothes sewn on the right and on women’s on the left?

Why are gingerbread cookies?

Why did the Danish engineer Karl Kroeler, who for the first time suggested that when a sunken ship was lifted air, and polystyrene (foam), could not get a patent for his invention?

Why did the pager come up?

Why did you invent the kaleidoscope?

Why not put the first computer at home?

All articles of the section Big Encyclopedia:

Anatomy, physiology, psychology






Countries and nations

Culture, the arts, fashion

Economics and finance

Engineering, technology, transport

Food and drinks

Geography, ecology


Inventions and discoveries




Science and education