Simple FM receiver. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Simple FM receiver. Encyclopedia of radio electronics and electrical engineering

Free technical library

Encyclopedia of radio electronics and electrical engineering / radio reception

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I bring to your attention an FM radio receiver, which can be assembled both on imported and domestic components.

(click to enlarge)

Publication: N. Bolshakov, rf.atnn.ru

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Random news from the Archive

Cleaner in a freshly painted room 07.01.2013

At BAU 2013, German scientists from the Fraunhofer Institute will present a promising method for cleaning up the environment. The widespread use of new technology will make people's lives longer and healthier.

This is a technology for cleaning the air from nitrogen oxides and other substances harmful to health using photocatalytically active surfaces. Simply put, the Germans have developed a spray coating that can destroy toxins when exposed to light. Such paint can be used to cover the interior walls of apartments, the exterior walls of houses, lampposts, public transport, etc. This will radically improve the ecological situation, especially in large cities, where the concentration of particulate matter and other toxins, such as nitrogen oxides, is extremely high, which causes a wide variety of diseases, from pulmonary edema to damage to the central nervous system.

The paint, developed by German experts, contains widely available titanium dioxide. This substance, under the influence of light, acts as a catalyst that converts nitrogen oxides into nitrates. The new coating is currently being tested for effectiveness and durability. After 2 years, it will become known exactly how much nitrogen oxides the new coating can remove from the air and how effective it will be in cleaning the atmosphere in cities and along highways.

If the tests are successful, titanium dioxide coating will be used almost everywhere. First of all, scientists from the Fraunhofer Institute plan to use the new coating in "smart" buildings - comfortable, economical with clean air that is harmless to health.

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