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Several people (including me) were curious about that cheap inverter from the latest mailbag, so time to dive in and see what its ...

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I spotted this interesting little G8 style LED light in the clearance bin at a local hardware store and it got me curious. Of course ...

Watch this awesome smd soldering practice project featuring both SMD and through-hole components with LDR (Light ...

Learn the difference between Class A, Class B, Class AB, and Class D audio amplifiers in this short video. See how each amplifier ...

I sat down to sort out the assortment of zener diodes from a mailbag a while back, and this is the result. Sadly, the result is a bit ...

An interesting electronic key / employee tracking device. Turns out, it's not too exciting inside, but you never know these things ...

New version available at: http://www.youtube.com/watch?v=f5fwdGFBrwU Table of content: 00:05 Introduction 00:32 Jacks / test ...

Back in mailbag#80, I received a gift of this T-12 style soldering iron. Now that I've got my hands on some tips for it, I thought I'd ...

Semiconductors are in everything from your cell phone to rockets. But what exactly are they, and what makes them so special?

February 24, 2025 -- In this episode of Chalk Talk, Sarah Alqaysi from Siemens and Amelia Dalton investigate the Siemens ...

mechanic #diy #car Keeping your transmission temperature low can help improve performance an increase durability. This is part ...

A whistle-stop tour of how computers work, from how silicon is used to make computer chips, perform arithmetic to how programs ...

This tutorial deals with the very basics of transistor amplifiers. Starting with different types of transistors, the video focuses on the ...

Playlist (with all related videos): https://www.youtube.com/playlist?list=PLhy2nHJciTED7xA_u5OyUj7oDEFf3BuZY This tutorial is ...

No-nonsense breakdown of the original ESP32, ESP32-S3, ESP32-C3 and ESP32-C6, ESP32-H2, and upcoming P-series chips!

In this video, we will look at the different Arduino boards available on the Arduino web store. Chapters: 0:00 Intro 0:31 Most ...

How do you analyze a circuit with resistors in series and parallel configurations? With the Break It Down-Build It Up Method!

This Tutorial describes two basic implementations of analog to digital converters, the flash converter and the successive ...

patchouli dot readthedocs dot io/en/latest/ discord dot gg/EGKbpjMyaB.

The EOS calculator is identical to the Hannovera model CK, but was made for the Swiss market. It uses an oscillating toothed ...

I found this early '90s era power supply on it's way to the scrap heap, and I got curious about what's under that massive heatsink.

a teardown of a Samsung SER-6500 electronic cash register comments are welcome on original post: ...

Old power supplies sometimes go boom! In April 2021, YouTuber CuriousMarc made a horror film about a power supply that fried ...

This is the meter that I received in mailbag 61 - a meter that my patreon supporters suggested that I take a look at. Yes, it's another ...