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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

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

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


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

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

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

Bocsh electric tools
Makita electric tools

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


ORDER OF DIAGRAMS  Order of schematic diagrams and service manuals

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

Russian amplifiers
Russian b-w TVs
Russian car audio
Russian color TVs
Russian electrophones
Russian monitors
Russian radio
Russian r-gramophones
Russian tape recorders
Russian testers
Russian video recorders

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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Fun stories Fun stories

By Alexander Polunin, Uzhgorod, Ukraine

One day I was fixing up a customer’s TV set at his home. Walking by me, he said: ‘Make sure you don’t leave something in my TV set. Soldering iron or something else like that’. I smiled at him: ‘Don’t worry, I am a service engineer, not a surgeon!’ So, I fixed the TV, got my money and went home. Just before I got home I have recalled that conversation and thought about the device I’ve been using to repair that TV. Where was it? I got home, opened up my case and discovered that the device was not there! Suddenly the phone rang and I answered. There he was – the same customer! ‘Sasha, - he said, - you left your device here’. My heart missed a beat… ‘Where?’ – I asked. – ‘Did I really leave it inside the TV set?’ ‘Oh, no, of course, not! On the table!’

By Danil Khashiev, Ivanovo, Russia

I got a phone call to come and repair a TV set. I come to the place –a young lady opens the door. I come in, put my case on the table and start unpacking my stuff: a soldering iron, a tester, a screwdriver, tweezers… and so on. Then I take out a soapbox where I keep solder and a toothbrush that I use to wash boards. The lady silently watches my preparation and then says: ‘Are you going to spend night here???’ I say: ‘You mean, because I have so much stuff with me, prepared for major repair?’ Her answer is: ‘Well, no. I see, you brought your soap and toothbrush with you!!!’

Igor Zaitsev, St.Petersburg, Russia

One day I was brought a tube Rubin TV set for repair. I took off the back cover and saw lots of small yellow and green feathers inside the TV. They definitely belonged to a parakeet. My first thought was that the TV owner’s parakeet got inside, and this is where his death found him. When the owners came to get his TV, I told him about my find. The owners were a little bit shocked and then they told me the following story. The TV set was a gift from their neighbors who sold some of their property and gave the rest away and went abroad for good. Pretty soon all of a sudden a parakeet showed up in their apartment. They kept the bird and everyone loved him. Only now they realized why the bird disappeared without trace once in a while. It turned out that the parakeet used the TV set as a nest. He got inside through a hole in the back cover and warmed himself by the tubes. In a miraculous way the bird didn’t get killed inside the TV set and died a natural death in quite venerable age.

Rostom Uriadmkopeli, Rustavi, Georgia

Once a customer brought his TV set on a taxi and asked me to do rush repair. He said that he would ask the taxi driver to wait to see whether it was possible to have the TV repaired right then so that he could take it home. The problem was in a blown-up electrolytic capacitor of power supply unit, electrolyte covered the board completely. I told the customer that I had to cleanse the board with alcohol, dry it and then install a new capacitor. It took me about 20 minutes to cleanse the board, then I turned a lamp towards it to dry it faster. So, the customer is sitting next to me waiting. It turned out that the taxi driver was in a hurry, too. He comes in and sees that we silently sit and look at the disassembled TV set. He looks at us for a couple of minutes and then quietly asks the customer who the person that works on the TV set is. The customer points at me, and I keep looking at the board silently, waiting for it to get dried. The puzzled taxi driver quietly asks the customer again about what I am doing. The customer answers: ‘The TV will be done soon. It was washed, now we are waiting for it to get dried’. The confused taxi driver looks around to find a sign and asks me: ‘Is this TV repair shop or TV wash?!!’ The silence was broken by a burst of laughter - mine and the customer’s.

Maxim Spivakov, Almaty, Kazakhstan

My neighbor, an older lady, comes to me, gives me a pleading look and says: ’I brought a remote control, will you repair it for me, please?’ ‘Well, no problem, I’ll take a look at it’ – I say. She reaches into her apron pocket, pulls out a handkerchief with something in it, unfolds it and, finally, takes out a handful of metal and plastic pieces. Followed by my puzzled stare this garbage drops onto my desk. ‘What is it?’ – I ask. ‘This this our TV remote control’. ‘What happened to it?’ ‘It fell’ – she says. ‘Where did it fall from? From the thirteenth floor???’ It turned out that the remote control did fall. The old couple had a quarrel, and the lady grabbed the remote control and threw it at the offender, her husband. With orbital velocity it flew through a room into the next one where it was stopped by the opposite wall. As a matter of fact, nothing was left of that remote control.
To be more exact, there was something left, but it didn’t work. J So, I bought her a new remote control and advised her to live in peace.

FERUM, Dnepropetrovsk, Ukraine

The same reason

Once I came to a village for equipment repair. Repaired something at one place, at another, as they say – I was passed from hand to hand.

A middle-aged guy approached me in the street and asked:

- Can you repair a VCR?

- What’s wrong with it?

- Well, you see, I came home drunk, quarreled with my wife and punched the VCR on the cover with all my strength!..

I had quite hard time with that VCR. In about a month I came back to that village and gave it to him with a contented look (of course, I brought it back to life!). The guy asked me again:

- Can you repair a TV set?

- What’s wrong with it?

- Well, you see, I came home drunk, quarreled with my wife, took that TV set and threw it on the floor with all my strength…

Eugene Hanson, Santa Clara, USA

It happened in 1988 in Leningrad. It was very popular to install PAL, I had a lot of customers, everything was going smooth. The board was installed next to the soviet chromaticity unit… Everything was great, except the socket(slot)(connector) was in the position that in order to take it out you would have to pull it towards the television tube. Being a truly lazy and experienced service engineer, I didn’t turn the TV off most of the time while working. Why would I waist time? One day my friend who was a doctor brought me his TV set, and the socket on it was pretty tight. When I finally pulled it out, I touched the television tube board with my hand. Yes, the focusing part. The greatest shock I got was not from 6KV, but from the fact that these kilovolts passed through me and the socket, and… destroyed a chip in the chromaticity unit. So I had to redo the whole thing. When I told my friend that I nearly got killed, his answer was: ‘Don’t worry, I would save you. I am an expert in resuscitation, you know…’

Valery Krushinin, St.Petersburg, Russia

Couple of months ago I bought a new TV set, a Sony. But I couldn’t enjoy it to its fullest, since Flip, my dear dog, ate the remote control the following day. I went to the market and got a new one. I did my best to hide it from my dog. But one day it suffered the same fate. So I had to go to the market again. The salesman recognized me and asked me with sympathy: ‘A dog?’ ‘Yes’, – I answered. ‘I don’t like dogs, - the salesman said. – I prefer cats’. I did not believe him. He, probably, loves dogs. You can’t make much money on cats.

Mikhail Lidman, Tel Aviv, Israel

Recently I got a request from my old customer. ‘Please, come, take a look – the TV set does not work’. Well, I went. I opened the back cover (some TV made in China, 29”). Oh!!! There was a huge crack on the board that divided it in half! ‘What happened?’ – I asked. It turned out that the TV set was on the book cabinet (about 1,5 meters tall). The 10-year old boy opened both doors and reached for the biggest schoolbook on the top shelf… To cut a long story short, the cabinet fell on the opened doors, covered the boy, didn’t even scratch him, and the TV set ended this acrobatic feat landing on its face. It took me about an hour and a half to restore everything, and the TV was back to normal. The most amazing thing was that after such flight nothing happened to this Chinese television tube: no spots, no stains.