Category: Reviews

Dabbling in Circuit Art: The LM386 Spider

Last month I built the DC40 receiver (and wrote a giant series on it: Part 1, Part 2, Part 3 and Part 4. And somewhat unofficially Here!) and at the same time, Hackaday.com posted their Circuit Sculpture contest. Would it be possible for me to combine projects, and submit the DC40 as a circuit sculpture of some …

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Building the QSX PA: First Impressions

As shown in A Previous Post, the QRP Labs QSX is on its way. It’s a SDR based all mode HF rig, 80m through 10m. It’ll be digital ready, too which is very cool! Recently we looked at what it’s going to take to build the QSX, and in this post we’re going to actually start …

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HF Antenna 80-10m, no tuner needed.

One of the amazing things about Amateur Radio is that you can turn the hobby into whatever you want it to be. You can  spend thousands of dollars on all the latest gear with a 130 foot tower with giant beams atop it. OR…. you can spend as little as possible and have at least …

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A Simple 5v Power Supply for Arduino, U3S and more

Many electronics experimenters and builders take the lowly 7805 regulator for granted, and we pop it in a circuit without a second thought and move along. But for beginners who are wondering how to power their Arduino or other 5 volt project (such as the QRP Labs U3S) from a 12v-13.8v power supply, the 7805 …

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Ham Radio for $100 Part 1: VHF

It is often said that ham radio is a very expensive Hobby. It is my aim in this blog post to show you that while ham radio can be expensive, it doesn’t necessarily need to be expensive to get started and have a lot of fun on the air! We’re going to look at three …

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