Removing paint from an etched board. Scheme, description

Free technical library

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

Removing paint from an etched board. Encyclopedia of radio electronics and electrical engineering

Free technical library

Encyclopedia of radio electronics and electrical engineering / Ham Radio Technologies

Comments on the article

After etching the board blank, the nitro-paint that has already become unnecessary, covering the conductors, is removed either mechanically (cleaned with sandpaper, a knife blade) or with solvents (a swab soaked, for example, in acetone). The second method is used much more often, since it reliably ensures the safety of printed conductors.

However, such a simple process sometimes stretches for a long time, you have to spend quite a lot of solvent, and yet noticeable traces of paint remain on the board. I suggest using a piece of hard foam rubber instead of a swab and accompanying the acetone paint removal with a warm water rinse.

As a result, boards remain clean, solvent is used more carefully and time is saved.

Author: I. Rudzik, Khmelnitsky, Ukraine

See other articles Section Ham Radio Technologies.

Read and write useful comments on this article.

<< Back

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 ... >>

Petgugu Global cat litter 15.04.2024

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

Communication with sleepers 01.03.2021

New scientific experiments have demonstrated the ability to ask questions to a person in a lucid dream - and even get the right answers to them.

Some special techniques and mental states allow you to experience lucid dreams, in which a person understands that he is in a dream, and can even control its content. This is a very curious phenomenon that opens up completely unique possibilities for studying sleep. Scientists have been able to demonstrate that a connection can be established between a lucid dreamer and the real world.

Until now, such contacts have remained one-way: having plunged into a lucid dream, people could communicate this with eye movements or perform a prearranged task. But recently a connection has been shown in both directions: people heard the questions of the experimenters and answered them while remaining in a dream.

The work involved several teams of scientists from Europe and the United States, led by Ken Paller (Ken Paller) from the US Northwestern University. They conducted experiments with 35 volunteers who had various lucid dream experiences and another who had narcolepsy and was lucid in his sleep due to a neurological disorder.

Electrodes attached to the head, cheeks and near the eyes made it possible to register the onset of the REM (paradoxical) sleep phase, during which dreams come. Commands were transmitted to the experimental subjects using voice, and eye movements and facial expressions served as feedback, which the sleepers could partially control. For example, they were asked to subtract six from eight - and the subjects answered "two", moving their eyes twice from left to right.

In most cases (approximately 60 per cent), contact could not be made. In 20 percent of the experiments, the answers obtained were incorrect or unclear. However, about 18 percent accounted for certain and reliable communications with sleepers. Moreover, when they woke up, they often remembered the experience. According to the volunteers, the questions sounded in a dream, like a voiceover. However, they did not always reproduce what happened exactly and sometimes they did not name the questions that they were asked.

Other interesting news:

▪ Synesthesia can be induced under hypnosis

▪ Ford cars will learn to track free parking lots

▪ edible tableware

▪ What is healthy for a cat is death for a mosquito

▪ Sunny Seville

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the website Residual current devices. Selection of articles

▪ article For the love of art. Popular expression

▪ article Why is the cloth on most billiard tables green? Detailed answer

▪ article Rector. Job description

▪ article Low voltage metal detector. Encyclopedia of radio electronics and electrical engineering

▪ article Capacitor-zener diode rectifier. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews