Testing a Cheap Bench Power Supply Sold on Amazon
https://hackaday.com/2025/05/03/testing-a-cheap-bench-power-supply-sold-on-amazon/

We’ve all seen those cheap bench power supply units (PSUs) for sale online, promising specifications that would cost at least a hundred dollars or more if it were a name …read more (https://hackaday.com/2025/05/03/testing-a-cheap-bench-power-supply-sold-on-amazon/)

3D Printed Cable-Driven Mechanisms – Some Strings Attached
https://hackaday.com/2025/05/03/3d-printed-cable-driven-mechanisms-some-strings-attached/

One of the most basic problems with robotic arms and similar systems is keeping the weight down, as more weight requires a more rigid frame and stronger actuators. Cable-driven systems …read more (https://hackaday.com/2025/05/03/3d-printed-cable-driven-mechanisms-some-strings-attached/)

Frnisi DMC-100: A Clamp Meter Worth Cracking Open
https://hackaday.com/2025/05/04/frnisi-dmc-100-a-clamp-meter-worth-cracking-open/

Not all clamp meters are the same, and this video shows just that. In a recent teardown by [Kerry Wong], the new Fnirsi DMC-100 proves that affordable doesn’t mean boring. …read more (https://hackaday.com/2025/05/04/frnisi-dmc-100-a-clamp-meter-worth-cracking-open/)

A Delay Line Memory Demo Board
https://hackaday.com/2025/05/04/a-delay-line-memory-demo-board/

Delay line memory is a technology from yesteryear, but it’s not been entirely forgotten. [P-Lab] has developed a demo board for delay-line memory, which shows how it worked in a …read more (https://hackaday.com/2025/05/04/a-delay-line-memory-demo-board/)

Electric Catamaran Sails High Seas of Inland Canada
https://hackaday.com/2025/05/04/electric-catamaran-sails-high-seas-of-inland-canada/

There are a number of plans for DIY boats available online, so [Phil] went in search of one for a custom catamaran to travel the inland waterways of Canada. But …read more (https://hackaday.com/2025/05/04/electric-catamaran-sails-high-seas-of-inland-canada/)

PCB Renewal Aims To Make Old Boards Useful Again
https://hackaday.com/2025/05/04/pcb-renewal-aims-to-make-old-boards-useful-again/

We’ve all made a few bad PCBs in our time. Sometimes they’re recoverable, and a few bodge wires will make ’em good. Sometimes they’re too far gone and we have …read more (https://hackaday.com/2025/05/04/pcb-renewal-aims-to-make-old-boards-useful-again/)

All-Band Radio Records Signals, Plays MP3s
https://hackaday.com/2025/05/04/all-band-radio-records-signals-plays-mp3s/