Category: homebrew

BITX40 Rebuild Part 2: It Has Begun!

As I wrote in Part 1 of the BITX40 Rebuild Part 1, my own love affair with the BITX40 goes back to December 2016 when a gift from my wife arrived from India in the form of a BITX40v3 from HF Signals, Ashhar Farhan’s company that at the time produced just the BITX40v3. Also mentioned …

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A Personal Milestone: Published on Paper

As far back as I can remember, I have had a fondness for words and language. Even in the second grade, learning the roots of words, their suffixes and prefixes, and so many things surrounding grammar- it was all just fascinating to me. Beginnings Through Middle School and High School, English class was what I …

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Ununs, A new End Fed, and Homebrew Capacitors [YouTube]

Things have been pretty hectic here at Chez Geek, but I’ve made some time this month to work on a new project. Now that the QCX Mini 20 is all fixed up, and I’m making inroads in learning CW, it’s time for a dedicated “spare” antenna. My station has been single-antenna since I restarted radio …

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Backpack SDR: A modular QRP SDR Transceiver

Edited 12/13/20 to reflect the move to Groups.io from Facebook Today I wanted to post about a new SDR project called “Backpack SDR” that’s taking shape. Since August, Keith Myles, VE3IFT has been sharing pictures of his Backpack SDR transceiver project on the Amateur QRP Radio group on Facebook: What is the Backpack SDR? The …

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Cheap Soldering Iron: Which one?

This article was originally published in January 2017. It has been updated. In this entry we’ll talk about my search for a cheap soldering iron. I’ve been burning myself with cheap soldering irons since I was about 10 years old and I taught myself various bad ways to solder. I’ve dabbled in electronics here and …

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Windy Weather Antenna Damage: Fix + JS8Call fun (Video)

In this video we look at what happened to my antenna in a winter storm and build an antenna mast for with less than $10 worth of material. Then we head over to the computer and try it out with JS8Call. Come watch, it’ll be fun! Links mentioned in video: L-Match How To: https://miscdotgeek.com/qrp-l-match-tuner-build/ Jackite …

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Experimental Methods in RF Design is on Clearance

Hey everyone, just a short post to let you know that Experimental Methods in RF Design (EMFRD) is now on clearance at the ARRL’s store for just $20. This is an incredible deal for anybody who’s the least bit interested in Amateur Radio home brewing. Where to get EMFRD You can get it right now …

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Salvaging old CB’s for QRP Parts: Part 4

In the previous three installments, we tore down two old CB’s and an even older tube based CB linear amplifier. Those teardowns were a lot of fun and a great way to look at the way things used to be done before frequency synthesis took over. In this final CB teardown, we’re going to look …

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Salvaging old CB’s for QRP Parts: Part 3

In this third installment of Salvaging old CB’s for QRP Parts, we’re taking a slightly different turn. I still have another CB to tear into for the next post, but for this one, we’re changing it up a bit. Pictured below is a Mystery Box Thing that I purchased at a garage sale. It was …

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Salvaging old CB’s for QRP Parts: Part 2

Welcome to the second installment of “Salvaging old CB’s for QRP Parts”! In part 1 of this series, we described how we found a bin of CB radios and accessories at an estate sale some time back. The first radio we salvaged for parts was a Pace CB 145. The radio was disassembled to see …

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