Category: DIY

BITX40 Rebuild Progress Report, MiscDotNews

In this post we’re going to catch up with what’s been going on over here at MiscDotGeek and explain the gap in posts lately. We’ve been busy, and some of it hasn’t been all good, sad to say. I recently posted about a series of videos related to the BITX40 Rebuild project, which so far …

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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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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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QCX Mini Troubleshooting and Repair Tips

If you’ve been keeping up on the MiscDotGeek YouTube channel or the QRP Labs Groups.io forum, then you’re likely aware that the QCX Mini has had some teething issues. We’ve already covered the C38 problem, and that’s been fully resolved. Instead we’re going to look at the issue that some builders are having: The inability …

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Building the QCX Mini: What Tools do you Need?

Now that the QCX Mini’s are arriving, hams around the world are looking at the little tiny package that comes in the post and are wondering if they have the tools to build this diminutive little radio. If you’ve built almost any other radio kit, then you have most of the tools already. But we’re …

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QCX: Tips for Winding T1

A lot of hams get pretty stressed out when they think about winding the main transformer in the QCX,. T1. It’s got 4 sets of windings on it, and looks intimidating- But it isn’t! In the video below, we show how easy it can be. It IS tedious. It IS time consuming. And to install …

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Critical QCX Mini Update and some Mini Tips

On 12/3/2020, Hans Summers of QRP Labs released the QCX Mini- a truly miniature 5W CW transceiver. By the December 7, all 997 units were sold! It was definitely exciting to see the response to this new product, and after having built most of my own QCX Mini, I can confirm- it’s an incredible little …

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QCX Mini: Winding and Installing T1

A lot of hams have expressed trepidation about winding and installing T1 on a QCX Mini, QCX+ or even the original QCX, since they’re all the same. T1 looks hard because there are four windings on one toroid. In this video, I wound T1 and installed it on the QCX Mini. All that’s left to …

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Receiver Build Gone Wrong Part II: The Fix

The QRP Labs Receiver build was not destroyed! It is on the air now, and listening patiently for JS8 signals to filter in. It works great, and I’m a very happy ham because of it. What happened? Check the video below: Have you had experiences like this? Please, tell us about it in the comments …

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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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