Category: homebrew

Ham Radio Homebrew Hack Chat with ZL2CTM on 3/18

On Wednesday 3/18 at 12pm PST (1900Z) there will be a Hack Chat over at Hackaday.io with Charlie Morris, ZL2CTM. If you haven’t watched his videos on YouTube, they’re definitely worth checking out. Charlie goes into great detail about the design and construction of his radios, and there’s a project for any level of builder. …

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Excellent QRP, Homebrew, and DIY YouTube Channels Worth Checking Out

In this post, we’re simply going to show you some YouTube channels that you should check out, and subscribe to them if you like them. First up is Mark, G0MGX. His channel focuses on QRP Homebrew, and he has a great approach to how he builds. Here has an excellent series on scratch building a …

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The Bitx Easy: More Details Emerge!

In a recent post “The BITX40 is dead. Long Live the BITX40!” we talked about the demise of the HFSignals.com version of the BITX40, and offered some details about a different BITX kit that is coming out soon: The Bitx Easy. We’ve been able to get some more details about the Bitx Easy, and we …

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AF5HD’s L-Match Tuner Build

A fun project for every QRP enthusiast is an L-match tuner. We’ve built a couple here at MiscDotGeek and our latest build (shown here) inspired Billy Dunn (AF5HD) to build a similar tuner. We have to say, this one turned out better than ours did! The only trouble he ran into was that one of …

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Toroid Tip #4: Counting!

As a collector of tips and tricks that I can use when building radio stuff. I’m also a writer and I love sharing knowledge. When Todd, N0IP shared a tip that I can’t believe I didn’t think of myself, I just had to write it up! For the other three tips, see the link at …

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The DC40 is complete- and dual band!

In December 2018, we published 5 articles all based on the DC40 project, starting with Part 1. We last left off with a few pieces that definitely made up a receiver. But, it was just parts on the bench and really needed a case. Then in February 2019 we picked up a Panasonic AM/FM Cassette …

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MiscDotGeek talks Radio Homebrew on W5KUB!

Here at MiscDotGeek we’ve been pretty busy with Real Life Stuff, and it’s been hard to find time to hack on radios lately. But that doesn’t mean we don’t have time to talk about hacking on radios! And that’s exactly what we did last week on the W5KUB Amateur Radio Roundtable broadcast. In fact, we …

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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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KI7MNW’s Homebrew QRP Transceiver

Cameron Tribe, KI7MNW recently posted his homebrew QRP transceiver on the Amateur QRP Radio group on Facebook. It’s completely scratch built and borrows design elements from several sources including the BITX40. Follow all the way to the bottom for a picture gallery, schematics, and source articles. Tonight I finished my homebrew 40m QRP transceiver. I’ve …

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Building a Direct Conversion Receiver: Part 3

In the first installment, we talked about choosing a Direct Conversion receiver design to build and getting started with the most basic parts. Part 2 dove into Manhattan construction and building the amplification stages. For this third installment, we’re going to discuss the functions of the Diode Ring Mixer, Band Pass Filter, and VFO stages. …

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