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A vacuum tube preamplifier is typically used to amplify the signal from a microphone, musical instrument, or other audio source before it is sent to a power amplifier or recording device. Compar...
ECH83 Guitar Preamplifier with Tone Control on 12V DC
868
0
3
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
A weather station typically includes sensors that measure various environmental factors, and data collected by these sensors is then utilizes to predict the weather for the next few hours ...
Advanced ESP32 Internet Weather Station with 5 day Forecast
1386
0
2
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
This time I will show you how to make a sensitive Pulse Induction metal detector which is based on ARM STM32 microcontroller, which has significantly better features than Arduino and is also che...
DIY Sensitive STM32 Pulse Indiction Metal Detector (Arduino IDE)
1779
0
4
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
A VFD (Vacuum Fluorescent Display) is an electronic display device that is commonly used for displaying numeric or alphanumeric characters. It is similar to an LCD (Liquid Crystal Display) but u...
Simple ESP8266 NTP Clock on VFD Display VFD256x50 GP1287
1481
0
1
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
This time I will explain two of the simplest ways to make a 12V to 220V inverter, one with transistors and the other with Mosfet. Most often this type of inverters are made from parts of old PC ...
Simple Inverters 12V to 220V , comparision, testing, and real characteristics
1297
0
1
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
Roulette is a casino game named after the French word meaning little wheel which was likely developed from the Italian game Biribi. In the game, a player may choose to place a bet on a single nu...
How to make simplest Arduino European Roulette Game ( 37 Leds )
1192
0
1
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
Royal Raymond Rife was a scientist, inventor and medical researcher (1888-1971). He is known for his microscopes, which he claimed could observe live microorganisms but also by an electronic dev...
DIY Advanced Plasma Rife Machine
896
1
3
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
This time I will present you how to make a quality High Voltage source in a very simple way. For this purpose I will use a old PC power supply, but it can also be used new one, whose price is very low...
The simplest way to make a quality HV (High Voltage) source from a PC power supply
1033
0
1
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
Recently, quality metal detector modules have appeared on the market for a very low price. Almost no knowledge of electronics is required to make the final product. This time I will presen...
Impulse III Metal Detector short Review
1925
1
0
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
A valve amplifier or tube amplifier is a type of electronic device that uses vacuum tubes to increase the amplitude or power of a audio signal. Until the invention of the transistor, all e...
DIY Simple PCL82 Low Voltage (12V) Tube Amplifier
3175
0
5
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
Pulsed ElectroMagnetic Field therapy, also known as PEMF, is a drug-free, non-invasive, pain-relief alternative treatment, which also promotes accelerated healing for ailments and injuries. PEMF...
PEMF Therapy device experiments - general descript_ion, building instructions, DIY
1951
0
2
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
A variable frequency oscillator (VFO) is an oscillator whose frequency can be tuned (i.e., varied) over some range. It is a necessary component in any tunable radio transmitter or receiver...
Universal VFO 10 KHz-160 MHz with Retro Analog Scale (variable frequency oscillator)
1792
0
6
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
Earthquakes are extremely common events around the world. On average, there are fifty earthquakes a day, around twenty thousand a year. Many are mild and go unnoticed, but some are catastrophic....
Arduino Eatrthquake alarm and protection system with D7S seismic Sensor
39
0
0
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
A metal detector is a device used to detect the presence of metal objects in the ground or other materials. It works by generating an electromagnetic field and then measuring the response of any...
Review and Comparison of Three Inexpensive Metal Detector Kits
103
0
0
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
Schumann resonances are global electromagnetic resonances, generated by lightning discharges in the space formed by the Earth's surface and the ionosphere. The primary frequency of Schumann reso...
DIY Simple Antistress and Relaxation PEMF Device based on Schumannn resonance frequency 7.83 Hz
113
0
0
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
Thanks to the production of specialized radio chips, nowadays it is possible to make a quality multiband receiver by ourselves in a very simple way. In several of my previous videos, I described...
DIY Si4825 A10 multiband Radio (MW,SW,FM)
197
0
0
Mirko Pavleski
Mirko Pavleski
NORTH MACEDONIA
84
0
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