Low frequency amplifier on a TDA1558 chip. Scheme, description

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Low frequency amplifier on a TDA1558 chip. Encyclopedia of radio electronics and electrical engineering

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Low frequency amplifier on a TDA1558 chip

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Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

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Laser X-ray machine detects radioactive contraband 04.01.2016

For the first time since 1988, the production of plutonium-238 resumed at the Oak Ridge National Laboratory of the US Department of Energy. This unstable isotope, with a half-life of 87,7 years, is used in spacecraft radioisotope generators, and until recently NASA "ate" the plutonium-238 purchased from Russia in 1993. But given that not all of the remaining plutonium meets the required specifications, the Russian isotope is enough for another 2-3 missions. And the new production line will be able to produce 300-400 g per year with an increase in production up to 1,5 kg per year in the future.

However, the Department of Energy is concerned not only about a possible shortage of radioactive materials, but also about their falling into the wrong hands domestically - for example, through more than 100 million containers arriving annually in the United States. Only a small proportion of them pass through customs, and containers with a high degree of national security risk are checked using X-ray and gamma-ray installations and detectors of radioactive materials. But such installations are huge in size and are not able to detect a small amount of radioactive material hidden inside a shielded container.

The solution to the problem was proposed by researchers from the American University of Nebraska in Lincoln. They figured out how to make a laser X-ray machine that can detect a uranium disk the size of three dime coins hidden between 10 cm thick steel panels. developed by university scientists in 7,5. The machine emits a highly focused X-ray beam, similar to a laser pointer, that can travel a considerable distance and detect radioactive material on ships before they enter port.

According to the researchers, the new facility is about the size of a truck trailer, is much safer than existing devices, and has a detection capability far beyond the 1kg mass of uranium required by the standard. The facility was developed with a grant from the US Department of Homeland Security's Office for Nuclear Discovery.

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