DENKI OTAKU

I Built a USB-C Charger that Can Charge 100 Devices at the Same Time.

Try to Use Cheap Lab Power Supply Sold on Amazon

Peltier Device Could be a Generator

Stacking 5 Peltier Modules, and Reached -90℃

Stepper Motor, Operating Principle and Structure Explained

Using an Ultra Low Noise SMPS (Switching power supply). How it Achieve Low Noise Performance

Why Electric Trains Make Interesting Sounds. I Made a Singing Train Motor!

Your Electronics Emit an Electromagnetic Noise!. This is the Reason!

Are Cheap Power Tool Batteries Safe to Use? Teardown Test!【Just Buy official Battery】

Which wall charger is better? What's the difference? Same specs, different price.

I found Real 12inch silicon wafers on AliExpress.

FAKE vs Genuine Power Semiconductors: Which One Performs Better?

$4000 Electric Car Inverter Teardown.

What is a Resistor?

I Found Hidden Gems on Aliexpress part1 【DP100 USB DC Power Supply】

Teardown Anker's Latest Wall Charger and Found This. What's This?

I bought super cheap DC-DC converter on Amazon, but It was FAKE.

I made my own Capacitor at CHEMI-CON!

Soldering SMT components is not easy.

I Got Osciloscope! This is my MOST EXPENSIVE SETUP EVER! HDO6000B 1GHz model.

DO NOT BUY 1% Resistors from Amazon. I REGRET IT.

Soldering Complete Tutorial for Beginners | Leaded, SMTs, Chip【Step by Step】

Electrolytic Capacitors: Comprehensive Overview, Teardown, and Experiments

HITACHI Inverter Teardown!! Audi e-tron. Wow it's Made in JAPAN !

Wireless Power Transfer explained

I got Soviet made germanium diode and modified the radio

Making a Foxhole radio Very primitive

47kW Electric Car Motor from MITSUBISHI i-MiEV. [Eng sub]

Site Visit Tour to EMC Test Lab.

This Definitely Break your Computer