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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 ...

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 ...

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

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 ...

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

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

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

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

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

After seeing that LED light bulb kit in the last mailbag, I knew I wasn't going to wait very long to build it. And, since there has been ...

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

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 ...

"The orientation of an inductor doesn't matter." That's just one of many lies professors and teachers tell. It might be true in theory ...

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 ...

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

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

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

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.

Tags: FPP Talent: Robert Cowan.

High-frequency technology is, in a way, applied black magic for electrical engineers. A good example of that is this unassuming ...

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

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 ...

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

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

Hello People, This is the first episode of the new series on Mailbag. In this episode, Sathyan gets his hands on the consignment ...