Passive bass and treble tone control with one knob. Scheme, description

Free technical library

ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
Free library / Schemes of radio-electronic and electrical devices

Passive bass and treble tone control with one knob. Encyclopedia of radio electronics and electrical engineering

Free technical library

Encyclopedia of radio electronics and electrical engineering / Tone, volume controls

Comments on the article

Passive bass and treble tone control with one knob. Scheme

Author: A. Shikhatov; Publication: bluesmobile.com/shikhman

See other articles Section Tone, volume controls.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Major risk factor for gambling addiction 07.05.2024

Computer games are becoming an increasingly popular form of entertainment among teenagers, but the associated risk of gaming addiction remains a significant problem. American scientists conducted a study to determine the main factors contributing to this addiction and offer recommendations for its prevention. Over the course of six years, 385 teenagers were followed to find out what factors may predispose them to gambling addiction. The results showed that 90% of study participants were not at risk of addiction, while 10% became gambling addicts. It turned out that the key factor in the onset of gambling addiction is a low level of prosocial behavior. Teenagers with a low level of prosocial behavior do not show interest in the help and support of others, which can lead to a loss of contact with the real world and a deepening dependence on virtual reality offered by computer games. Based on these results, scientists ... >>

Traffic noise delays the growth of chicks 06.05.2024

The sounds that surround us in modern cities are becoming increasingly piercing. However, few people think about how this noise affects the animal world, especially such delicate creatures as chicks that have not yet hatched from their eggs. Recent research is shedding light on this issue, indicating serious consequences for their development and survival. Scientists have found that exposure of zebra diamondback chicks to traffic noise can cause serious disruption to their development. Experiments have shown that noise pollution can significantly delay their hatching, and those chicks that do emerge face a number of health-promoting problems. The researchers also found that the negative effects of noise pollution extend into the adult birds. Reduced chances of reproduction and decreased fertility indicate the long-term effects that traffic noise has on wildlife. The study results highlight the need ... >>

Random news from the Archive

Concentration of thoughts hinders creativity 23.03.2013

Scientists from the University of Pennsylvania have found a way to increase the efficiency of creative work by stimulating the prefrontal cortex of the brain.

It is believed that the prefrontal cortex controls cognitive activity and is a kind of filter that does not allow extraneous thoughts, perceptions and memories to interfere with the current task. In experiments, scientists slowed down this natural filter and found that this increased productivity in work that requires creative thinking. Participants were shown pictures of everyday objects and asked to quickly come up with unusual ways to use them, such as using a baseball bat as a rolling pin. The subjects were shown a sequence of 60 objects, one every 9 seconds, and the scientists timed the time it took the subjects to come up with an answer.

The researchers suggested that a high level of cognitive control by the "filter" interferes with the creative task. In everyday life, the filter helps us to focus on the main properties of the object and "cut off" what is not essential. At the same time, when solving creative problems, in particular, the non-trivial use of ordinary objects, it is necessary to take into account the entire range of its properties.

It turned out that this is the case: with transcranial stimulation of cognitive control zones with direct current (when a weak electric current penetrates the brain right through the skull), creativity increased. Apparently, stimulation causes changes in the electrical potential of neuronal membranes.

In other words, scientists have limited the ability of neurons in a particular area of the brain to generate signals, which reduced the activity of this area. Subjects with "regular" prefrontal cortex activity, on average, could not come up with unusual uses for 15 out of 60 objects, while subjects with inhibited activity in this brain region missed only 8 objects. At the same time, the latter gave the correct answers, on average, a second faster. For the brain to work, a second is a huge amount of time, usually researchers work with milliseconds.

The study by scientists from the University of Pennsylvania not only provides an opportunity to develop technologies for stimulating creativity, but also explains some aspects of human development. For example, since the prefrontal cortex develops slowly, children find it difficult to focus on a particular task, but they excel at creativity.

Other interesting news:

▪ Solar power plant on a roll

▪ Electric car Mercedes-Benz VISION EQXX

▪ LG to launch phone with flexible OLED display

▪ Empathy prevents skepticism

▪ Camcorder for short people

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section Batteries, chargers. Article selection

▪ article by Miguel de Cervantes Saavedra. Famous aphorisms

▪ article What is a Gordian knot? Detailed answer

▪ Guilin Mountain article. Nature miracle