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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.

Big Encyclopedia. Botany

Big Encyclopedia. Botany

Big Encyclopedia. Botany. Simple answers to difficult questions:

Are seaweeds beneficial?

Are there any flowers that smell sweet in the night?

Asparagus grows?

Can a tree communicate what it needs?

Do cacti have leaves?

Do plants react to the upcoming weather changes?

Does a carrot help me see in the dark?

Does a tree act as an air filter?

For what kind of green revolution did Norman Borlaug receive the Nobel Peace Prize?

How are seeds spread in nature?

How are weeds distributed?

How big is the world's largest rose bush?

How did grapefruit get its name?

How did the agave get its name?

How do coconuts grow?

How do fruits and vegetables get their names?

How do mushrooms grow?

How do nuts grow?

How do plant roots penetrate deeply?

How do plants feed?

How do plants get their food?

How do seeds appear?

How do seeds germinate?

How do trees grow?

How do trees grow?

How does a banana tree grow?

How does a new flower grow?

How does algae grow?

How does grass spread seeds?

How does rice grow?

How does the juice go up the tree?

How fast are trees?

How is tobacco grown?

How long and why did Europeans fear to eat tomatoes?

How long does a person grow vegetables?

How long does a tree live?

How many apples exist on earth?

How many crocuses do you need to collect to get a kilogram of saffron?

How many kinds of oranges exist?

How many palm species exist?

How much oxygen does one tree give?

How much water does a plant need?

How to determine the age of a tree?

Is a tomato a fruit or a vegetable?

Is all rice white?

Is there a lot of water in the cactus?

On which tree do the world's largest fruits grow?

What are evergreens?

What are hybrid cereal varieties?

What are lichens?

What are nuts?

What are predatory plants?

What are the berries?

What color is a carrot?

What is a banyan tree?

What is a dispute?

What is a grenade?

What is a weed?

What is biology?

What is botany?

What is diatom algae?

What is Eucalyptus?

What is forestry?

What is garlic called in China?

What is gum?

What is mistletoe?

What is nutmeg?

What is olive oil?

What is paprika?

What is photosynthesis and what does it mean for life on Earth?

What is pineapple?

What is plankton?

What is plant grafting?

What is pollination?

What is soil for plants?

What is tapioca?

What is the carbon cycle?

What is the difference between edible mushrooms and toadstools?

What is the difference between fruits and vegetables?

What is the largest tree?

What is the nitrogen cycle?

What is yeast?

What makes bananas grow?

What part of the chilli pepper is the most burning?

What produces most of the atmospheric oxygen?

What tree was the Kon-Tiki raft built?

What's inside the coconut?

When did the first flags appear?

When were the first fertilizers applied?

Where are the first oranges?

Where are the washcloths taken from?

Where are the watermelons?

Where did cabbage come from?

Where did the bananas come from?

Where did the coconut come from?

Where did the first watermelons appear?

Where did the olives come from?

Where did the peanut come from?

Where did the sugar come from?

Where did the tulips come from?

Where do mushrooms come from?

Where do nuts grow?

Where do various spices come from?

Where does a tree grow on trees?

Where does the soil fertility standard stored in Paris come from?

Where was the first rice grown?

Which of the creatures living on Earth is the oldest?

Which plant has the largest flowers?

Which plant is the record for growth rate?

Which plant species is the longest on the planet?

Which tree is the record for age?

Which tree is the strongest?

Which tree is the tallest?

Which tree trunk is the largest in a circle?

Why are cranberries and many other sour berries?

Why are the leaves colored differently in the fall?

Why are there so many seeds in figs?

Why bark trees?

Why did Catholic missionaries force island natives to cut down coconut palm?

Why do plants have roots?

Why do plants make starch?

Why do plants turn to the Sun?

Why do we celebrate the New Year?

Why does a cactus have needles?

Why does a tree drop leaves in the fall?

Why does corn have a silk strand?

Why does nettle burn?

Why does the cork float?

Why is bread so necessary?

Why is pine an evergreen?

Why is the taste of coffee different?

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