Collaborate Disseminate
How it started: a simple repair job on a Roland drum machine. How it ended: a scratch-built FM drum synth module that’s completely analog, and completely cool. [Moritz Klein]’s journey …read more Continue reading Designing an FM Drum Synth from Scratch
How would you go about determining absolute zero? Intuitively, it seems like you’d need some complicated physics setup with lasers and maybe some liquid helium. But as it turns out, …read more Continue reading An Absolute Zero of a Project
With vector network analyzers, the commercial offerings seem to come in two flavors: relatively inexpensive but limited capabilities, and full-featured but scary expensive. There doesn’t seem to be much middle …read more Continue reading Homemade VNA Delivers High-Frequency Performance on a Budget
We’re probably all familiar with the Hall Effect, at least to the extent that it can be used to make solid-state sensors for magnetic fields. It’s a cool bit of …read more Continue reading Shine On You Crazy Diamond Quantum Magnetic Sensor
It’s been a while since we’ve dunked on an autonomous taxi foul-up, mainly because it seemed for a while there that most of the companies field testing driverless ride-sharing services …read more Continue reading Hackaday Links: April 13, 2025
Sick of raiding old TVs and CRT monitors for flyback transformers to feed your high-voltage addiction? Never fear; if you’re careful, a 3D-printed flyback might be just the thing you’re …read more Continue reading Satisfy Your High-Voltage Urges with This Printable Flyback Transformer
Would-be spooks and spies, take note: this one-transistor FM transmitter is a circuit you might want to keep in mind for your bugging needs. True, field agents aren’t likely to …read more Continue reading Brush Up on Your Trade Craft With This Tiny FM Bug
Normally, videos over at The Signal Path channel on YouTube have a certain vibe, namely teardowns and deep dives into high-end test equipment for the microwave realm. And while we …read more Continue reading Making Liquid Oxygen: Far From Easy but Worth the Effort
Sitting in front of a computer all day isn’t exactly what the firmware between our ears was tuned to do. We’re supposed to be hunting and gathering, not hunting and …read more Continue reading Better Bearings Take the Wobble Out of Premium Scroll Wheel
An electric typewriter is a rare and wonderful thrift store find, and even better if it still works. Unfortunately, there’s not as much use for these electromechanical beauties, so if …read more Continue reading Dozens of Solenoids Turn Vintage Typewriter into a Printer