A word of warning before watching this very cool video on soldering: it may make you greatly desire what appears...
PCB
The x86 CPU landscape of the 1980s and 1990s was competitive in a way that probably seems rather alien to...
Battery management is a tedious but necessary problem that becomes more of a hassle with lithium-ion technology. As we’re all...
The proliferation of microcontrollers has made it easier than ever to add some smarts to a project, but sometimes there...
Printed circuit boards are typically only something you’d find in a digital watch. However, as demonstrates, you can put them...
wanted to clone some model car raceway track and realised that by scanning the profile section of the track with...
wanted an Everything Presence Lite kite but found it was always out of stock. Therefore, he decided to create his...
When thinking of the first PCs, most of us might imagine something like the Apple I or the TRS-80. But...
Remember when dead batteries were something you’d just toss in the trash? Those days are long gone, thankfully, and rechargeable...
There are many forms of human interface device beyond the ubiquitous keyboard and mouse, but when it comes to fine-tuning...
When we first spotted the article about a one-transistor amateur radio transceiver, we were sure it was a misprint. We’ve seen...
OK, it’s official: the Quansheng UV-K5 is the king of hackable ham radios — especially now that a second version of...
Today is another board from a friend, , who wants to convert a Yaesu FRG7700 radio to USB-C PD power. It’s yet...
For Hamvention 2024, I am very happy to announce a limited availability of Beta CubeSatSim Kits! We will have some...
In the world of cheap amateur radio transceivers, the Quansheng UV-K5 can’t be beaten for hackability. But pretty much every...
I know I’ve mentioned this before, but on the off chance you’ve forgotten, I graduated from university in 1980. My...
If necessity is the mother of invention, nostalgia must be its stepmother, or its aunt at the very least. The...
The radio frequency world is full of mysteries, some of which seem to take a lifetime to master. And even...
How do you convert an old cockpit instrument into a clock? Easy: just build a circuit that convinces it it’s...
Dirty little secret time: although amateur radio operators talk a good game about relishing the technical challenge of building their...
As NFC chips proliferate, so do the antennas they require for operation, and since many NFC-enabled items are single-use, this...
Yagi-Uda antennas, or simply “Yagis”, are directional antennas that focus radio waves to increase gain, meaning that the radio waves...
HF radios often use toroidal transformers and winding them is a rite of passage for many RF hackers. received a...
he microstrip antenna is a convenient, planar, easy-to-fabricate antenna with some attractive attributes and features, as well as some distinct...
We have all seen Printed Circuit Board (PCB) antennas: those squiggly bits of traces on PCBs connected often to a...
