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How to Make EM84 (6E2) Vacuum Tube Stereo VU Meter

How to Make EM84 (6E2) Vacuum Tube Stereo VU Meter

This VU meter is very sensitive, has great dynamics, and the response time is instantaneous, and would be a great visual addition to a tube amplifier.

March 15, 2024 by Mirko Pavleski

DIY Extremly Sensitive and cheap Geophone sensor for Earthquakes detecting

DIY Extremly Sensitive and cheap Geophone sensor for Earthquakes detecting

How to make a Geophone sensor yourself for free from parts that can be found in any workshop. However, the sensitivity does not lag behind commercial geophones at all.

February 23, 2024 by Mirko Pavleski

DIY simple Spark Gap Tesla Coil

DIY simple Spark Gap Tesla Coil

Simplest type of Tesla coil that produces high-voltage, low-current, and high-frequency alternating-current electricity.

February 09, 2024 by Mirko Pavleski

The simplest way to determine the quality of lighting in your home - bulb flickering meter

The simplest way to determine the quality of lighting in your home - bulb flickering meter

This way of checking the quality of lighting in our home, or anywhere else, is extremely simple, cheap, and mobile, and we get the results instantly, without any adjustments.

January 19, 2024 by Mirko Pavleski

How to build simple cheap Hulda Clark Syncrometer

How to build simple cheap Hulda Clark Syncrometer

Hulda Clark's Syncrometer was a device she claimed could detect the presence of various substances in the body, such as parasites, toxins, and pathogens. This time I will show you how you can make such an instrument yourself.

January 05, 2024 by Mirko Pavleski

DIY simplest small CRT Oscilloscope

DIY simplest small CRT Oscilloscope

Simplest possible way to make a compact retro-style analog oscilloscope with a cathode ray tube (CRT), which is powered by 12V.

December 30, 2023 by Mirko Pavleski

Advanced Plasma Rife Machine with internal Carrier Oscillator

Advanced Plasma Rife Machine with internal Carrier Oscillator

A simpler version of my previous project "DIY Advanced Plasma Rife Machine" with embedded Carrier signal frequency oscillator.

December 08, 2023 by Mirko Pavleski

ECH83 Guitar Preamplifier with Tone Control on 12V DC

ECH83 Guitar Preamplifier with Tone Control on 12V DC

Simple single tube preamplifier with tone control that includes options for adjusting the bass, midrange, and treble frequencies. It also has gain, volume, and input sensitivity controls.

November 17, 2023 by Mirko Pavleski

Making Art with the iDraw pen plotter

Making Art with the iDraw pen plotter

The iDraw Pen Plotter is an absolute game-changer for anyone looking to elevate their creative pursuits, whether you're an artist, designer, or hobbyist. As a proud owner of this remarkable piece of technology, I've been absolutely blown away by its performance and capabilities. Here's my comprehensive review of the iDraw Pen Plotter:

November 12, 2023 by Bernhard Poppe

DIY Mini Virtual Pinball Cabinet

DIY Mini Virtual Pinball Cabinet

How to make a mini virtual pinball cabinet that is a smaller version of a traditional pinball cabinet designed for home use and can be a great alternative for pinball enthusiasts who may not have the space or budget for a full-sized pinball machine.

October 06, 2023 by Mirko Pavleski

Advanced Sensitive Lightning detector with PC Graph

Advanced Sensitive Lightning detector with PC Graph

How to make a very simple lightning detector, which with the help of a personal computer with a sound card, and simple software turns into a serious instrument for monitoring and predicting weather disasters.

September 01, 2023 by Mirko Pavleski

Li-Fi data transfer experiment - transferring data using a Led and Solar Cell

Li-Fi data transfer experiment - transferring data using a Led and Solar Cell

In this experiment I will describe you a way where the light from 10W Power LED diode is used for tarnsfering Audio signal wirelessly.

August 25, 2023 by Mirko Pavleski

How to make Multichannel PEMF Therapy device for PEMF Bed

How to make Multichannel PEMF Therapy device for PEMF Bed

A simple way to make a multi-channel PEMF device that is used to make a special therapeutic bed, or therapeutic chair. The device is very simple to build, and contains components that are easily available online and are also very inexpensive.

August 19, 2023 by Mirko Pavleski

Simple Sensitive  3 Transistors  BFO Metal Detector

Simple Sensitive  3 Transistors  BFO Metal Detector

Despite its simplicity, it gives excellent results. If properly adjusted according to the instructions, it is able to detect a small coin at a distance of 15 cm, and a large metal object at a distance of 50 cm and more.

August 04, 2023 by Mirko Pavleski

How to make Simplest Colloidal Silver Generator

How to make Simplest Colloidal Silver Generator

Colloidal silver is a suspension of tiny silver particles in a liquid medium, usually water. It has been used for various medicinal and health purposes for centuries, dating back to ancient civilizations. This time I will present you the simplest way to make a cheap colloidal silver generator, which can be made by anyone who can solder a few poin

July 28, 2023 by Mirko Pavleski

XHDATA D-368 Radio short review

XHDATA D-368 Radio short review

A short review of this cheap portable radio, mp3 player, and bluetooth speaker.

July 22, 2023 by Mirko Pavleski

Induction heater, HV source, and Wireless Energy transfer with chip mini ZVS Driver from Aliexpress

Induction heater, HV source, and Wireless Energy transfer with chip mini ZVS Driver from Aliexpress

How to make some practical devices with a cheap compact ZVS driver module sold on AliExpress for less than $5.

June 30, 2023 by Mirko Pavleski

DIY simple GU81 Tube Hybrid Amplifier (130 watts RMS in A class)

DIY simple GU81 Tube Hybrid Amplifier (130 watts RMS in A class)

The amplifier described in this project is "Hybrid", but now the case is reversed and the Tube is used at the output, thus preserving all the positive features of a pure Tube Amplifier.

June 24, 2023 by Mirko Pavleski

Simple Inverters 12V to 220V , comparision, testing, and real characteristics

Simple Inverters 12V to 220V , comparision, testing, and real characteristics

Two of the simplest ways to make a 12V to 220V inverter, one with transistors and the other with Mosfets, and whether it is reasonable to make them.

April 15, 2023 by Mirko Pavleski

The simplest way to make a quality HV (High Voltage) source from a PC power supply

The simplest way to make a quality HV (High Voltage) source from a PC power supply

Usually, for HV experiments is used so-called ZVS driver, but damage to the mosfets often occurs due to its low efficiency. This is simple, compact, easy to make, and stable during long-term operatin HV Source.

February 11, 2023 by Mirko Pavleski