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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.

Clocks, timers, relays, load commutators

Clocks, timers, relays, load commutators

Clocks, timers, relays, load commutators. Articles with illustrations and detailed explanations:

2-speed single-speed fan mode

4-channel microprocessor timer, thermostat, clock for the Smart Home system

A device for slowing down the action of AC electromagnetic devices when they are turned off

A photorelay with a thyratron

A simple time relay

AC Semiconductor Key on an Optocoupler Thyristor

Acoustic Automatic

Acoustic Relay

Acoustic relay on a field-effect transistor

Acoustic relay, switching load from cotton, 10-12 V 120 W

Acoustic Switch (1)

Acoustic Switch (2)

Acoustic switch of four loads and automatic lighting effects

Automat-economy of electricity

Automatic - lighting switch

Automatic disconnection of the Amplifier from the network

Automatic light switch

Automatic periodic load on and off (1)

Automatic periodic load on and off (2)

Automatic Phase Switch

Automatic protection of network radio equipment

Automatic shutdown of network adapters

Automatic shutdown of radio equipment

Automatic shutdown TV

Automatic stripping of the contacts of the buttons in the microcontroller device

Automatic switch of radio equipment with protection against unauthorized switching

Automatic switch of the kettle

Automatically turn off the Amplifier and other audio devices

Autostart of a diesel generator when the power supply is cut off on the PIC16F84A microcontroller

Autotransformer automatic switch

BND-50 / SG1 Electronic Timer - Universal Power Management Unit

Capacitive Relay (1)

Capacitive Relay (2)

Chinese watches - timer

Clock for automatic control of devices

Clock with a thermometer and a barometer

Code Switch (1)

Code Switch (2)

Computer mouse for quartz watches

Contactless control of power circuits up to 10 A

Contactless switch based on a PIR module

Control of the magnetic starter with one button

Cyclops Wireless Remote Control Device

Delay devices for long time intervals

Dependent inclusion of electrical and radio equipment

Dependent inclusion of electrical appliances

Dependent inclusion of loads

Dependent switch for household appliances

Device for automatic disconnection of household equipment from the mains

Device for remote blocking of electricity consumers

Device for soft power start

Device for switching on the refrigerator

Digital Kitchen Timer

Digital tachometer-clock

Digital Time Relay

Digital timer for the pump

Economical Timer

Electric cold relay and some information about the refrigeration unit

Electric Heater Timer Switch

Electrical switching devices instead of electronic systems

Electronic alarm clock

Electronic clock from the parts of the radio designer

Electronic Hourglass

Electronic Load Switch

Electronic main circuit breaker

Electronic second hand

Electronic stopwatch on two transistors

Electronic timer with a long exposure time

Electronic wrist watch signal booster

Energy-saving photo relay

Fan Switch with Timer

Fisher-based computer clock

Frequency meter-generator clock at АТ89S8252

High Power Timer

Home Time Service

Hourly alarm in hours

Hours of telephone conversations

Household radio switch

How to extend the life of electronic watches

Improving the work of electronic wristwatches

Independent switching on and off

Integrated timer in the temperature control circuit

Intermittently enabling network load

Interval Timer on PIC16F684 Microcontroller

IrDA remote control includes electrical appliances

Kitchen device of five independent timers

LED clock

LED hourglass simulator

Light Relays

Liquid Flow Control Relay

Load switch from sound signals

Low battery-powered timer

Low-voltage interrupter

Low-voltage load current interrupter

Magic Relay

Microcontroller Timer

Modernization of the electronic clock

Multi-program timer-clock-thermometer

Multi-Range Time Relay

Network load management TTL-chip

Network timer with an exposure time of 5 minutes

New life of old hours

One-button load control device

Option of the mechanism drive switch

Optosimistor switch of a powerful load, 220 V 40 A

Periodic load automatic switch

Periodic power interruption device with long shutter speed

Photo relay switching load from the lighting, 10-12 V 120 W

Photorelay on a triac

Power control with feedback

Power supply-timer, 220/9 V 1 A

Power switch on field-effect transistors, 20 A

Power switch on the transistor

Powerful load current interrupter

Powering the low-voltage electromagnetic relay

Power-off timer for electronic clocks

Primary Clock (1)

Primary Clock (2)

Primary quartz watch

Priority enable and disable loads

Programmable control automaton

Programmer time

Protection device for high-current equipment

Pulse alarm backlight

Pump control circuit

Pump Shut-Off Machine

Quasi-touch relay switches

Quasi-touch switch

Radio-controlled socket

Refinement of imported electronic clocks

Refinement of the network extension filter

Refinement of the rocker switch

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

Refrigerator On Delay Timer

Relay Control Unit IrDA (1)

Relay Control Unit IrDA (2)

Remote control of household appliances

Remote Load Control Device

Remote switch electrical appliances

Retro clock

Secondary watches with matrix indicator

Sensor for the fan

Setting the accuracy of the quartz watch

Signaling device

Simple alarm clock on the PIC16F84

Simple Primary Clock

Smoothly turning on the power Amplifier

Soft inclusion of powerful loads

Soldering Iron Stand

Sound Relay (1)

Sound Relay (2)

Sound relay with time relay, 4 minutes

Stable Timer

Stepping on a powerful load

Surge Protection Device

Switches on transistors

Switching 12-volt electromagnetic relays from a Vage source twice less

Switching the line Vage using triacs

Talking Clock

The alarm clock thermometer with remote control

The electronic clock controls the electric motor

The light turns off automatically

The refrigerator controls the heating of the house

the sound timer controls the timer

Thermal Relay, 5-80 degrees 10-12 V 120 W

Thermometer Clock

Thermometer with timer function or thermostat control

Three Phase Load Control

Thyristor Time Relay

Thyristor Timers

Time Relay (1-11 h) for half an hour

Time relay on two transistors with your own hands

Time relay that shuts off the load at intervals of up to 5 minutes, 3 V 120 W

Time relay with shutdown indication

Timer for brewing tea

Timer for charging the electric shaver battery

Timer for coffee grinder

Timer for forgetfuls

Timer for intermittent load on

Timer to turn off the game console

Timer with 24-hour cycle

Timer with automatic power off and one-button control

Touch power control

Touch Relay

Touch relay, triggered by the touch of a finger, 10-12 V 120 W

Touch switch

Touch switch on the AT90S2313 chip

Touch time relay for electromechanical toys

Transistor clock

Transistor Network Switch

Transistor switch with overload protection

Turning an external device on and off using a modem

TV Automatic Switch

TV Off Timer

TV Timer

Universal programmable timer

Universal Timer

Universal timer on the PIC controller

Very loud alarm clock

Voice control equipment

Wall clock-thermometer

Watch Always with you

Watchdog Timer

All articles of the section Consumer electronics:

Consumer electronics. Bells and audio simulators

Consumer electronics. Clocks, timers, relays, load commutators

Consumer electronics. Home, garden, farmland, hobbies

Consumer electronics. Indicators, detecting devices, metal detectors

Consumer electronics. Miscellaneous

Consumer electronics. Power controllers, thermometers, thermostabilizers