Contents of the collection Radioamator-best. Convenient search

FREE TECH LIBRARY
Content of books and magazines / Contents of the collection Radioamator-best

Detailed content of all issues of the collection Radioamator-best 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002

Compilation Radioamator-best

Below, in alphabetical order, are the titles of articles published in the collection. Radioamator-best from 1993 to 2002 g.

DSB radio station on K174XA2

emergency generator

Automatic water intake

Automatic network protection against extreme voltage deviations

Automatic recording from telephone line

Automatic charger

car burglar alarm

Active vibrator antenna

Acoustic systems with increased efficiency

Antenna matching device

Antenna amplifier UHF - invisible

VHF Antenna Amplifier

Apparatus for magnetotherapy MS-92M

High Voltage Automotive Generator

High quality power supply

High quality HC for cassette recorder

Dogchaser - scary story for dogs

Christmas garland on LEDs

Replacing the kinescope on a Sony KV-2155K TV

Protect your phone from intruders

Current transfer ratio meter

On-board voltage indicator

Current indicator

Phone eavesdropping indicators

Air ionizer

The use of light-emitting panels on CHIP LEDs

Capacitor tester

Power supply for three-volt audio players

How to make an offset antenna

Code switch

Combination lock

Combined amateur radio instrument

Parallel Telephone Switch

Location metal detector

Small simple transceiver

Low power wide range stabilizer

Low-noise high-end transistorized preamplifier

PLL detector metal detector

High sensitivity metal detector

Miniature oscilloscope

Miniature probe

Music call

An oscilloscope from a PC is just...

security device

intercom for home

Intercom via rural radio network

Personal radio transmitter

Power supply for AC motors

Listen to music, Anfiska! Rodent control

DC to AC converters

Sugar Quality Control Instrument

A device for checking and restoring kinescopes

Device for electropuncture

Beginner shortwave receiver

27 MHz radio receiver

Rural Electrician's Probe

Microcontroller programmer

RPZU programmer

Programmable four-channel timer

Simple high performance UHF antenna

A simple ignition timing corrector circuit

Simple intercom

Simple time relay with a time delay of 1 hour or more

Simple tape recorder

Simple radiometer

Simple radio microphone

Simple radio transmitter in the range 88-108 MHz

Simple welding semi-automatic

Simple digital frequency counter

Simple electronic voltmeter

Radio microphone on a chip

Radio receiver powered by low power photocells

Temperature, light or voltage regulator

Backup power for the home

With a map and a pattern - on the roof

Ultra-linear UMZCH of the High-End class on transistors

Sensor switch

Touch dimmer

Moisture alarm

MW radio frequency synthesizer

Remote control system

Hearing aid

Solar Wind Turbine Angel

Stabilization of mains voltage in the countryside

Stereo receiver on dual system stereo decoder

Scheme of remote control of light from any remote control

Burglar alarm scheme

Circuitry of devices for extending the service life of electrovacuum devices

Timer to turn off the game console

TV transmitter

TV Polish Antenna

Telephone answering machine

Temperature controller that does not require calibration

Heat stabilizer for home appliances

Available Parts Tester

Spot welding from old TVs

160 m direct conversion transceiver

Three-band UMZCH

VHF receiver

VHF FM receiver with increased noise immunity

Universal car probe

Universal power supply

ULF for radios

Hearing Aid Amplifier

Device for two-stage switching on of incandescent lamps

220V AC wired remote control

Device for collecting bee venom

Battery monitoring device

Optical burglar alarm device

Physiological tone control

Femicom - family joystick

Color and music installation

Digital voltmeter on ADC R572PV2

Digital capacitance meter

Digital thermometer thermostat

CMU - color music devices

Four joysticks in one harness

Sensitive radio microphone

Broadband shortwave antenna

Broadband reversing amplifier

Remote control encoder and decoder

Electronics in a home incubator

Electronic garland

Electronic candle

Electronic metal detectors

Electronic current stabilizer for battery charging

Electronic car direction indicator

Electrostimulators

<< Back

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

apple ipad 23.03.2017

Apple has announced a new tablet computer, which is simply called the iPad (without any set-top boxes). It replaced the iPad Air 2.

The presented device uses the Apple A9 processor versus the A8X in the iPad Air 2. The display remains the same - Retina with a resolution of 2048 x 1536 pixels. The screen in the novelty has become brighter.

The iPad also has two FaceTime cameras, a Touch ID fingerprint scanner, and a rechargeable battery that allows the device to work without recharging for up to 10 hours. The thickness of the product is 7,5 mm versus 6,1 mm for the iPad Air 2. The weight has also increased - from 450 to 469 grams.

Apple has created a new iPad in versions with 32 and 128 GB of memory. The cost will start from 25 thousand rubles (modification without an LTE modem). 128-gigabyte version with cellular support will cost 42 thousand rubles. The tablet is presented in golden, silver and dark gray body colors.

"The iPad has become even more accessible," said Apple senior vice president of product marketing Philip Schiller, quoted in the press release. "New users and those looking to upgrade their iPad will no doubt enjoy using at home, at school and at work.

Pre-orders for the purchase of the new iPad in the Apple online store will open on March 24.

Other interesting news:

▪ Solar sails for spacecraft

▪ flying windmill

▪ Wooden floor that generates electricity from steps

▪ Camera Sony Alpha A700

▪ Samsung eUFS 3.1 512GB Fast Flash Memory

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Grounding and grounding. Selection of articles

▪ article Man is born free. Popular expression

▪ article Is it true that the average person uses only 10% of their brain capacity? Detailed answer

▪ Tepari article. Legends, cultivation, methods of application

▪ article Radio transmitter with compact loop antenna. Encyclopedia of radio electronics and electrical engineering

▪ article Voltage stabilizers with a regulating transistor in the negative wire. Encyclopedia of radio electronics and electrical engineering

All languages of this page

Home page | Library | Articles | Website map | Site Reviews