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File – this steel bar with a notch on the surface is known to all and is very popular among home craftsmen, locksmiths and even some radio amateurs. A file is a kind of a peculiar cutting tool, which provides processing of various kinds of materials, parts and surfaces and this is what we will …

There are very exotic situations that require a non-standard solution and the use of specific materials. When working with optical devices glass and lenses the main thing is to maintain their basic property – transparency. This article describes optically transparent glue, which can be used quickly and easily enough for gluing glass and glass products. …

You need to start learning electronics with the basics. And first, you need to understand the elementary elements – the bricks that make up all electronic devices. This article is dedicated to the resistor because the resistor is one of the fundamental elements of circuits. No electronic device can do without resistance. Even if the …

In this article, in general terms, you can learn about a very common radioelectronic element called the electrical capacitor. The capacitor is used in most amateur radio electronic circuits, so the beginner radio amateur should understand in sufficient detail the basis of the capacitor, and how to use it. The capacitor is: The capacitor is …

To begin mastering semiconductor technology, it is necessary to understand the basic concepts of semiconductor, potential barrier, and p-n junction. In this article, we will discuss some of the intricacies of semiconductor technology using the semiconductor diode as an example. A semiconductor is: A semiconductor is a material whose electrical properties can change under the …

This article describes in general terms a radio electronic component called a choke – used in many electronic instruments and devices. A choke is used in applications where it is necessary to regulate the amperage. A choke can be used to separate or limit electrical signals at different frequencies and to eliminate DC ripple. Throttle …

Probably everyone, even novice radio amateurs (not even radio amateurs but just inquisitive people) knows what a LED is. LEDs are firmly embedded in everyday life, and each of us is constantly confronted with LEDs in everyday life. The article is of a general, informative character and is just useful for beginners or ordinary radio …

Every serious appliance begins with a fuse, a means of protecting man and the appliance itself from unwanted damage. This article will give you an overview of the electrical fuse because, despite its simplicity, the electrical fuse plays a huge role. In some circuits it is simply indispensable, and it is vitally important for a …