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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 ...

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

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

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 ...

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

I've got a nice easy kit to play with today. But it's interesting to see how it does what it does. MISTAKE WARNING: the device at the ...

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

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

In this tutorial, I'll show you the basic soldering techniques, explain the process, and help you avoid common mistakes. First, I'll ...

Another assortment of goodies for your perusal. This time, including one special request from my generous patreon supporters!

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

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 ...

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

There were some questions about the cheap charger from last week's mailbag, so let's take a closer look. Here's the datasheet ...

In this video tutorial series, young students learn about electronics by making hands-on projects. In this video, we will learn about ...

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.

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

Welcome to the 26th edition of Mailbag Monday. The links: ...

I haven't done hot-air reflow at home before. Can I manage to get an SOT-23-6 package onto a breakout board?

This is a bit more obscure and niche than the stuff I sometimes look at. This is the handheld control keypad from a Harris ...