built one of those cheap automatic antenna tuners you see everywhere — this one scaled up to 350 watt capability....
Hackaday
Perhaps every gardener to attempt to grow a tomato, lettuce, or bean has had to contend with animals trying to...
The proliferation of affordable lithium batteries has made modern life convenient in a way we could only imagine in the...
Proof-of-concept of the inductive coupling transmitter with the 12V version of the circuitry (Credit: Hyperspace Pirate, YouTube) Everyone loves wireless...
There’s been a lot of buzz about Meshtastic lately, and with good reason. The low-power LoRa-based network has a ton...
If you came of age in the 1990s, you’ll remember the unmistakable auditory handshake of an analog modem negotiating its...
Firefly’s Blue Ghost lander’s first look at the solar eclipse as it began to emerge from its Mare Crisium landing...
In our wider community we are all familiar with the idea of open source software. Many of us run it...
We used to say that fixing something was easier than bringing up a design for the first time. After all,...
If you’re familiar with Java here in 2025, the programming language you know is a world away from what Sun...
Single Sideband, or SSB, has been the predominant amateur radio voice mode for many decades now. It has bee traditionally...
The current generation of USB-powered soldering irons have a lot going for them, chief among them being portability and automatic...
FR4 is FR4, right? For a lot of PCB designs, the answer is yes — the particular characteristics of the...
Shortwave radio has a charm all its own: part history, part mystery, and a whole lot of tech nostalgia. The...
Big-name tube amplifiers often don’t come cheap. Being the preserve of dedicated audiophiles, those delicate hi-fis put their glass components...
In an ideal world, devoid of pesky details like contact resistance and manufacturing imperfections, you would be able to double...
By the beginning of the 20th century scientists were only just beginning to probe the mysteries of the atomic world,...
Something that you generally don’t expect as a North-America-based enthusiast, is to listen in on Russian military communications during their...
As part of the payloads on the Firefly Blue Ghost Mission 1 (BGM1) that recently touched down on the Moon,...
Saying farewell is hard, and in the case of the Voyager 1 & 2 spacecraft doubly so, seeing as how...
In the decade or more since small inexpensive Linux-capable single board computers such as the Raspberry Pi came to the...
Normally, when you want a low DC voltage from the AC line, you think about using a transformer of some...
Making a multi-band amateur radio transceiver has always been a somewhat challenging project, and making one that also supported different...
In a move that could have been seen coming from at least a decade away, Microsoft has confirmed that the...
Apple likes magnets. They started out with magnetic laptop chargers and then graduated to a system that magnetically holds the...
