Saving energy-saving lamps are now a thing of the past, and they have been replaced by LED lamps.In this article I will tell you how these lamps are arranged, the…
With the help of this electric lighter, which is powered by a 220 Volt mains, it is possible to ignite the gas with a high-voltage spark.Such devices are also called…
There are switches on sale with LED backlight, it shines at night and we find it unmistakably in the dark.You can assemble such a backlight yourself and I will give…
I got a children's electric motorcycle, which is designed to move children using the electric energy of the battery located inside the motorcycle.I decided to check, and what if I,…
Hello everyone.In this article I will tell you how to make a simple welding of wire twists based on a TS-180 power transformer and a carbon rod from a 1.5V…
For more than two years I have been using the well-known ESR GM328A tester and in this article I will tell you about the main functions of this device.Here we…
Hello everyone.In this article I will tell you how to make a simple but at the same time an excellent soldering iron that works from a 220 Volt AC and…
The CD40106 chip contains six Schmitt triggers.They are used in multivibrators, signal formers, and generators. …
Hello everyone.In this article I will tell you how to make a simple metal detector on a chip and a radio receiver, how it works and setup. The metal detector…
I decided to assemble a metal detector called Butterfly, which is so popular among novice radio amateurs.This is a metal detector on beats and is nicknamed a butterfly because of…
Hello everyone.This is the most common Soviet transistor, you will find it on most boards of Soviet household appliances and it is called KT315.Several good and simple circuits can be…
This device itself will disconnect the load from the power source during the day and turn it on at night, an incandescent lamp can serve as a load, and such…
A posistor is a radio component-a semiconductor with a positive temperature coefficient of resistance.The basic principle of operation of this part is simple:when heated, the posistor increases its resistance or…
In a cooler or fan, which is used in power supplies and other household appliances, there is a chip called fs276 or ats276 or ah276 or maybe even under other…
The TDA9381PS/... chip is a video processor from a TV with full video signal processing with a built-in microcontroller.This microcontroller is an analogue of the MK 80c51 and has a…
In 1892, Nikola Tesla managed to obtain a patent for an invention where the transmission of energy was by a single wire.The whole point is that two wires are usually…
With the help of this simple USB tester, we will be able to check the usb socket of the computer for operability. This is necessary after repairing the socket, especially…
Somewhere in the early 60s, one device was patented in the USA, which is a radio transmitter that does not require the usual power source.And it feeds on the energy…
Using this simple and simple device called a magnetostrictive emitter, you can conduct various experiments with ultrasound: make a low-power ultrasonic engraver, spray water, etc. You can learn these experiments…
A rather unusual detector radio can be assembled on a 6x2p radio tube.With this radio receiver, it is possible to receive signals from radio stations with amplitude modulation on long,…