Broadband amplifier based on the KT3115A transistor. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Antenna amplifiers
Comments on the article
A simple broadband antenna amplifier provides a gain of about 10 dB over the entire range allocated for television broadcasting.
The amplifier is a cascade with a common emitter and deep negative feedback through R1 C2, as well as emitter correction R5 R6 C5 C6. The amplifier is powered by cable. The R4 C3 antiparasitic circuit ensures the stability of the antenna amplifier at high SWR in the cable, which is possible when the input impedance of the TV is significantly different from the wave impedance of the cable.
Schematic diagram of the amplifier
Publication: cxem.net
See other articles Section Antenna amplifiers.
Read and write useful comments on this article.
<< Back
Latest news of science and technology, new electronics:
The existence of an entropy rule for quantum entanglement has been proven
09.05.2024
Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>
Mini air conditioner Sony Reon Pocket 5
09.05.2024
Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>
Energy from space for Starship
08.05.2024
Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>
| Random news from the Archive Electronic helmet for truck drivers
14.04.2024
Road safety, especially for drivers of heavy construction equipment, is a top priority for engineers and scientists. In light of this, the German Fraunhofer Institute for Structural Strength and System Reliability has introduced a new product - an electronic helmet, which is designed to protect drivers from serious injury when driving construction vehicles.
A new electronic helmet developed by a team of engineers from the Fraunhofer Institute opens up new prospects for the safety of truck and construction equipment drivers. The device is capable of monitoring the level of shaking in the car cabin and warning the driver of possible danger.
The basis of the helmet's operation is a built-in piezoelectric sensor, which generates electricity during physical deformation. This mechanism allows the device to respond to intense vibrations typical of construction equipment. When the level of deformation exceeds safe values, an alarm system on the helmet is activated to warn the driver.
This decision is especially important given that frequent body vibrations can lead to serious health problems such as injuries to the spine, eyes and even the brain. An electronic helmet allows you to effectively control the level of shaking and prevent such negative consequences for drivers.
Experts also note that such technologies can significantly improve road safety and improve working conditions for drivers of heavy construction equipment.
The electronic helmet presented by the German Fraunhofer Institute opens new horizons in the field of safety for drivers of construction equipment. Its ability to monitor vibration levels and warn of potential hazards makes it an important tool for ensuring road safety and protecting the health of drivers.
|
Other interesting news:
▪ Reusable paper
▪ All the most valuable companies in the world are from the IT sector
▪ Electrogenetic insulin
▪ Only five genes determine a person's face
▪ Improving the energy efficiency of existing wind farms
News feed of science and technology, new electronics
Interesting materials of the Free Technical Library:
▪ section of the site Application of microcircuits. Article selection
▪ article Cross the Rubicon. Popular expression
▪ Article How fast does light travel? Detailed answer
▪ Astrantia article. Legends, cultivation, methods of application
▪ article Power amplifier 60/120 watts on a microcircuit chip LM4780. Encyclopedia of radio electronics and electrical engineering
▪ article Dancing cobra. Focus Secret
Leave your comment on this article:
All languages of this page
Home page | Library | Articles | Website map | Site Reviews
www.diagram.com.ua
2000-2024
Arabic
Bengali
Chinese
English
French
German
Hebrew
Hindi
Italian
Japanese
Korean
Malay
Polish
Portuguese
Spanish
Turkish
Ukrainian
Vietnamese