Collaborate Disseminate
Last time, I gave a whirlwind introduction to a very small slice of systemd. If you aren’t comfortable with systemd services, timers, and mounts, you might want to read that …read more Continue reading Linux Fu: Stupid Systemd Tricks
If you have a well-equipped shop, it isn’t unusual to have a welder. Stick welders have become a commodity and even some that use shield gas are cheap if you …read more Continue reading Plasma Cutter on the Cheap Reviewed
We always enjoy [Kerry Wong’s] insightful teardowns, and recently, he opened up a UTG1042X arbitrary waveform generator. Getting inside was a bit of a challenge since there were no visible …read more Continue reading Waveform Generator Teardown is Nearly Empty
Most modern ham rigs have a voice activated transmission (VOX) mode, although we don’t know many people who use it often. When a transmitter is in VOX mode, it starts …read more Continue reading Voice Control for a Vintage Heathkit Radio
Modern test equipment is great, but there’s something about a big meter with a swinging needle and a mirror for parallax correction that makes a device look like real gear. …read more Continue reading Danish Vintage LRC Meter Reveals Inside
When there’s a new technology, there’s always a slew of people who want to educate you about it. Some want to teach you to use their tools, some want you …read more Continue reading A Slew Of AI Courses To Get Yourself Up to Speed
If you need a precise time, you could use a microcontroller. Of course, then all your friends will say “Could have done that with a 555!” But the 555 isn’t …read more Continue reading Delays and Timers in LTSpice (no 555)
If you need to make round things, you probably need a lathe. Can you build one as nice as one you can buy? Probably not. But can you build one …read more Continue reading No Lathe? Build Your Own
I will confess. I started writing this post about some stupid systemd tricks. However, I wanted to explain a little about systemd first, and that wound up being longer than …read more Continue reading Linux Fu: Getting Started with Systemd
A modern normal network card will have onboard an Ethernet controller which, of course, is a pre-programmed microcontroller. Not only does it do the things required to keep a computer …read more Continue reading Homebrew Network Card with No CPU