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Encyclopedia of electronics and electrical engineering
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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
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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
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Popular DVDs
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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
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Sharp mobiles
Siemens mobiles
Sony-Ericsson mobiles
TCL mobiles
Voxtel mobiles

Free online library on electronics Free household appliances schematic diagrams and service manuals:
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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

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Assembling the Rubik's Cube
Did you know?
Entertaining experiments at home
Funny puzzles
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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.

VHF-UHF antennas

VHF-UHF antennas

VHF-UHF antennas. Articles with illustrations and detailed explanations:

1296 MHz antenna Amplifier

144 MHz Antenna (1)

144 MHz Antenna (2)

144 MHz Antenna (3)

144 MHz Antenna Switch

144 MHz Car Antenna

144 MHz compact fox antenna

144 MHz Delta antennas

144 MHz Delta Loop Antenna

144 MHz Experimental Antenna

144 MHz multi-element vertical antenna

144 MHz vertical antenna

28 MHz shortened YAGI antenna

6 dB colinear VHF antenna

7-element log periodic

9-element Swan antenna at 144 MHz

About the antenna Five-eighths of lambda

Active Antenna

Active loop antenna

Active Transmitting Antenna

Another antenna with capacitive load

Another version of the vertical directional antenna

Antenna - direction finder

Antenna at 144-146 MHz

Antenna design Double square

Antenna directional (mini) on the range 144-146 MHz

Antenna filter for adding (dividing) VHF range signals

Antenna for a 144 MHz wearable radio station

Antenna for a portable CB radio station

Antenna for radio security alarms

Antenna HB9RU for the 50 MHz band and not only

Antenna of 432 MHz with circular polarization

Antenna of a range of 2 meters

Antenna on the window sill

Antenna or Amplifier?

Antenna Swiss Square at 144 MHz

Antenna Triangle at 14/27/28 MHz

Antennas of the 27 MHz range

Bobtail antenna

Broadband vertical radiator

CB / VHF Duplexer

CB antenna on the window

CB Shortened Half Wave Vibrator

Coaxial antenna 144-146 MHz

Collinear Antenna Slim Jim (G2BCX)

Compact 27 MHz receiving and transmitting antenna

Compact antennas of portable communications stations. Part 1

Compact antennas of portable communications stations. Part 2

Compact CB antenna

Copper multi-band VHF antenna Cactus

Dipole with a power point shifted from the center

Disco Cone Antenna

Disco cone antenna with a bandwidth from 80 to 500 MHz

Do-it-yourself GP 1/4, 1/2, 5/8 antennas

Double Eagle Antenna

Dual Square Antenna

Dual-band VHF antenna (1)

Dual-band VHF antenna (2)

Eagle Antenna

Electrically shortened loop antenna

Electronic Antenna Switch

External telescopic antenna for mobile devices

High-performance antennas at 430 MHz

High-performance VHF antennas

Improving FM Broadcasting

Isotron 80/40 Combo Antenna

Isotron antenna for the 14-30 MHz range

Making a YAGI VHF antenna

Method for powering a shortened loop antenna

Mini Square Antenna

Mussel Antenna

Once again on the antenna Five-eighths lambda

Operating experience of a small hand-held antenna

Option of the VHF control unit of the receiver with the frequency synthesizer on the LM7001 chip

Original antenna design for a range of 2 m

Practical DJ9BV antenna designs for the 144 MHz band

Quality factor and efficiency of the coil antenna

Radio Beacon 1300 and 2400 MHz

Refinement of the Baofeng UV-5R antenna

Shortened VHF antenna

Side-mount antennas for trunk systems

Simple and compact vertical antenna for the CB range

Simple CB antenna

Simple five-element

Skeleton-slot antenna: myths and reality

Sloper antenna (Oblique dipole)

Small three-element antenna

Spiral antenna

Spiral antenna for portable radio stations

Spiral GP for low bands

Triple Square Antenna

Two antennas per two meter range

Two simple antennas for 435 MHz and 145 MHz

Two-band UHF antenna

Two-Frame Receiving Antenna

UA6AGW v. Antenna 20-10 m

UB5UG direction finder antenna

Ultra shortwave antennas

Using Loop Vibrators in Trunk Radio

Variants of Kharchenko's zigzag antenna

Vertical antennas for low-frequency ranges

Vertical top power

VHF antenna (1)

VHF antenna (2)

VHF antenna type 144 MHz YAGI

VHF antenna with J-matching

VHF antenna with vertical polarization

VHF coaxial cable frame antenna

VHF FM active antenna

Whip antenna for the 144 MHz range

Whip antennas

YAGI antenna at 28 MHz

All articles of the section Antennas:

Antenna Amplifiers

Antennas. HF antennas

Antennas. Metering, adjustment, matching

Antennas. Technology

Antennas. Television antennas

Antennas. Theory

Antennas. VHF-UHF antennas