Electronic DIY

A simple and clear experiment on how a Faraday cage works. With the help of a Faraday cage you can jam radio waves or a cell phone signal. For this…

If you have a high voltage source, then you can assemble an ion fan on it. The wind will be created not by the blades, but by the high voltage.I…

This high-frequency generator can carry out interesting experiments, the generator is called a “Tesla coil”. There are low-frequency Tesla coils, this coil is high-frequency. The generator is made on the…

LA47201=tda7560 25 pin is not connected anywhere.Datasheet given on LA47202 Can be replaced with LA4743B(K) LA47201 LA47505 LA47515 TA8268HS TB2906HQ PAL 003 TDA7381 … TDA7386 TDA7560

In old image scanners there is a voltage converter for a fluorescent lamp.This lamp highlights the image when it is being scanned.In more modern scanners, LEDs are already used for…

In this article I will tell you how to make a simple mechanical TV, with simple electrical control circuits.This "TV" will show simple images.If you want to make a high-quality…

This tester will give a signal if there is a short circuit in the inductor between the turns, even if it is one turn.The device is assembled on 5 C1815GR…

This device is useful for an electric motor that drills holes in printed circuit boards.As long as there is no load on the drill, the rotor will rotate slowly.When the…

This device will protect against voltage reversal, short circuit, low voltage and high voltage.I applied the relay to 5 Volts.With a resistor of 140 ohms, it is necessary to set…

With this infrared remote control, it is possible to control the load from a distance.The control consists of a transmitter with a transmission frequency of 38 kHz and a receiver…

Lighting effects on four LEDs.The mode of their operation can be selected using the buttons.It can be the glow of LEDs sequentially or other effects.Made on a 7400 and 74ls145…

In this article I will tell you how to make a push-pull voltage converter for igniting flasks from fluorescent lamps.The converter is made on two APM3055L field-effect transistors, which you…

This is a low-power induction metal heater that can heat red-hot thin metal.The generator is made on an IRF540Z transistor.From this generator, you can make a fire generatorThe transistor is…

Ultrasonic fog generator, which allows you to turn water into fog.It is made on a 2SC2562 transistor and a 2.4MHz piezoelectric element I bought the piezoelectric element on Aliexpress, its…

With this device, you can mute an FM radio station at a distance of tens of meters.But we must take into account the laws, we must not interfere with the…

With the help of a laser pointer and a sensitive amplifier, you can conduct an interesting experiment.Install a sound source near the glass, it can be a radio receiver, etc.If…

In this article I will tell you how to make a very sensitive directional microphone, with which you can pick up weak sounds and listen to them.The microphone consists of…

This device is needed for a smooth start of halogen lamps at 12 Volts, so that they do not fail quickly and work longer.The device is made on an NTC…

With this device, you can adjust the brightness of a powerful halogen lamp at a voltage of 12 volts.The device uses pulse-width modulation, so the key-field transistor will not get…