Free technical library. Articles from Radio magazine, 2019

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Alphabetical list articles with annotations, from magazines published in 2019 in Radio magazine:

120 years of headphone radio reception

3D games using LED cube

Arduino Uno helps you play checkers

DVB-T2 receiver includes a CRT TV

DVB-T2 receiver turns on TV

Li-Ion battery in multifunctional IR remote control

USB charger for battery pack 6F22

USB socket in an old TV

Aircraft model tachometer

Auto switch-timer in a multimeter

Automatic switch of New Year's illumination

Adapter for testing transistors with short leads with a multimeter

Active speaker system with an amplifier based on the TA8227R chip

Active speakers for DVB-T2 set-top boxes

Active built-in speaker for computer

Active high-resistance probe for a digital oscilloscope on a microcontroller

Cottage Antenna

Ardunyasha manages the running line

MCS-51 architecture: moving to 64-bit Windows

Safe power supply of the load with voltage of any polarity

Uninterruptible power supply 5 V, 1 A

Wireless TDS-4 with built-in tube ultrasonic frequency converter

RGB LED Strip Control Unit

Ekron tube amplifier upgrade options

Bicycle LED Headlight

Vertical antenna for 3,5…28 MHz bands

Quiz Microcontrollers and USB

Quiz Microcontrollers and Temperature Sensors

Quiz Microcontrollers and I2C Interface

Quiz Microcontrollers and touch sensors

Quiz Microcontrollers and LCD modules

Influence of the capacitive component of the load on the frequency response of the AP of an electric guitar

Voltammeter for electronic dummy load

Remember QUAD 405

Built-in voltmeter-ammeter for adjustable power supply

Second quad pod upgrade

The second youth of the country TV

Remote probe with lamp 6X2P for V7-26 voltmeter

High-resistance oscilloscope probe with 50 ohm input impedance

High Frequency RMS Millivoltmeter

Swept Square Wave Generator

Sinusoidal Signal Generator with Stable Amplitude

Graphic LCD Nokia 5110 in a digital voltammeter

Antenna Rotation Sensor and Indicator

Current sensors based on current transformer

Two automatic chargers from prefabricated modules

Bidirectional amplifier UN7BV

Voltage divider for laboratory power supply

Remote control ignition and car starter

Fir-tree, light up!

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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

Italian secret to longevity 17.04.2016

In the Italian region of Campania there is a small settlement with a record number of centenarians: 20% of the townspeople celebrated their 110th anniversary and do not complain about their health. Scientists are looking for a clue to this phenomenon.

The small town of Acciaroli, located on the Mediterranean coast in the Italian province of Salerno, attracts tourists with its clean beaches: they have been awarded the prestigious Blue Flag award for their quality. Scientists are interested in the phenomenon of longevity: 300 out of 110 people living in Acciaroli have crossed the 78-year mark. This is an incredibly high rate. For comparison: in the US, the average life expectancy is 0,02 years, and only XNUMX% of the population lives to be XNUMX years old.

The riddle looks especially unsolvable given that the people of Acciaroli are not supporters of a healthy lifestyle: many of them smoke and are overweight. Sports are not very popular here: instead, the townspeople spend time in cafes, drinking coffee and wine.

Record longevity cannot be attributed only to excellent ecology or a good geographical location: fresh sea air and an abundance of greenery are characteristic of many regions of Italy. The same can be said about Mediterranean cuisine: its fans live not only in Acciaroli.

For many years, doctors have been taking blood tests and conducting DNA tests on the residents of this amazing city, but there is still no exact answer to the question posed. Scientists, however, found a slight difference in the diet of Italian centenarians: they use rosemary in abundance in cooking, and anchovies are the second most popular product.

But one should not think that everyone who includes these ingredients in their diet will automatically cross the century mark. Experts are increasingly inclined to the version of genes that are passed down from generation to generation.

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