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ABC of radio circuits. Kubarkin L.V., 1957

Battery VHF receiver

All-wave amateur radio receiver. Korobovkin V.V., Nefedov A.M., 1957

Germanium triodes in circuits of broadcasting and television equipment. Gershzon E.V., 1957

Pocket radios. Kupriyanovich L.I., 1957

Coils with armored cores in receivers

The tape drive mechanism of an amateur tape recorder

Amateur receivers on semiconductor triodes. Yakovlev V.V., 1957

Amateur network receiver with VHF band. Steiert L.A., 1957

Rural amateur radio tape recorder

New in high quality amplification technology. Labutin V.K., 1957

Broadcast receiver band switches

Portable VHF radio. Levandovsky B.A., 1957

Portable player with amplifier. Yanushkevich G.P., 1957

AC power for battery receivers

Semiconductor rectifiers. Roginsky V.Yu., 1957

Receiving television antennas

Simple superheterodyne

Radio measuring equipment. Meyerson A.M., 1957

VHF amateur radio equipment. Alekseev S.M., 1957

Radio control of ship models. Bruinsma A.X., 1957

Propagation of ultrashort radio waves. Grudinskaya G.P., 1957

Superheterodyne receiver adjustment

Homemade coils for amateur receivers

Network receiver 1-V-1

Handbook of electrovacuum and semiconductor devices. Broyde A.M., 1957

Handbook of electrovacuum and semiconductor devices. Broyde A.M., 1957

Handbook of the radio amateur. Kulikovsky A.A. (ed.), 1957

Descending devices. Enyutin V.V., Nikulin S.M., 1957

Circuits of amateur radio amplifiers of low frequency. Tarasov F.I., 1957

Schemes of VHF equipment. Kazansky N.V., 1957

VHF FM prefix

Universal heterodyne resonance indicator

Universal Measuring Instrument

Simplified calculation of power transformers and autotransformers

Troubleshooting TV. Elyashkevich S.A., 1957

Reader radio amateur. Spizhevsky I.I., Burlyand V.A., 1957

Electromechanical RF filters. Golubtsov M.G., 1957

Electrical musical instruments. Korsunsky S.G., Simonov I.D., 1957

Electronic computing devices. Mayorov F.V., 1957

Elements of the general communication history. Kazaryan R.A., Kuvshinov B.I., Nazarov M.V., 1957

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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 ... >>

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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

Satellites for registering gravitational waves 22.09.2020

China plans to launch the Taiji-2 space satellite. It is designed to conduct in-orbit experiments on key technologies related to the detection of gravitational waves from space until 2024.

Taiji-1, the first Chinese satellite in the program, was launched in August 2019 and is performing well in orbit, said Wu Yueliang, an academician of the Chinese Academy of Sciences (CAS), at the 2020 China Space Conference in Fuzhou, the provincial capital. Fujian in eastern China.

CAS has developed a three-stage strategy for the implementation of the Taiji program. It took the research team about a year to develop the Taiji-1. At the second stage, it is planned to launch two satellites, and at the third - three more.

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