How does the Operational Amplifier Work? Theory and Practice 100% Recommended.

PCB Production at Home, Easy and Fast Method.

Don't Throw Away Your Old Sound Equipment, Learn How to Upgrade It.

No more Batteries, Update all your Remote Controls.

How to Solder and Desolder Electronic Components with a Clothes Iron? 100% recommended.

You will Never Have to buy another Battery again with this interesting idea.

A Very Useful and Necessary Tool for your Multimeter. Accessory for the Multimeter.

Use old LED bulbs! You will never need batteries in your wall clock again.

The Varistor. How does the Varistor work?

How to light a 12V LED using a 3.7V Lithium-ion Rechargeable Battery?

How to Measure the Amperage of a Transformer, Simple and Easy to Do 100% Practical.

If You Don't Have Insulating Tape, Use Disposable Bottle Caps in Time of Emergency.

How to Engrave Your Logo or Name on Metal, with Homemade Materials. A Very Interesting Idea.

Improve your Soldering Iron so that it lasts for many years, a very useful idea for work.

You won't believe what I did with my Multimeter, a Necessary and Very Practical Tool.

Goodbye to Batteries, Easily Upgrade Your Electronic Equipment to USB and Save Money.

Interesting Idea with a USB Connector, a very Useful and Easy Tool to Make.

An Interesting Idea, Lights to the Rhythm of the Music without using Integrated Circuits.

Great Idea with Microwave Diode, Homemade Charger for 18650 Batteries.

No more Soldering Paste, make your own paste using ingredients you can find at home.

Don't Waste any more Batteries, Update all your Electronic Equipment.

How to know which is Positive and which is Negative in a USB Cable?

Great Invention Using a Coil from a Recycled Plate.

Interesting Idea with Recycled Magnetron.

Great Idea with Recycled Microwave Diode.

I Applied HIGH VOLTAGE to Electric Toys!

Don't throw away your non-rechargeable batteries without first seeing this interesting idea.

Don't throw away the speakers you no longer use, instead build this interesting circuit.

How to Make Your Circuit Work with Your Power Supply Polarity Reversed?

How is a Mosfet Transistor used in Practice?

How to calculate the Protection Resistor for an LED Diode?

The Transformer. Let's Learn How It Works and How to Measure Its State.

The Zener Diode. How does the Zener Diode work?

How to detect FAULTS in a Diode Bridge?

How to Fix a Fan that Doesn't Spin?

Make your own Electromagnetic lock using pieces of a Fluorescent light Bulb.

How to make a blown fuse indicator.

HOW TO USE A THREE TERMINAL SWITCH?

HOW DOES A MOSFET TRANSISTOR WORK ?, THE MOSFET TRANSISTOR, IRFZ44N.

TEMPERATURE SENSOR, THE LM35