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/

In these days of everything-streaming, it’s great to see an old school radio build. It’s even better when it’s not old-school at all, but packed full of modern ICs and …read more (https://hackaday.com/2025/05/04/all-band-radio-records-signals-plays-mp3s/)

Hackaday Links: May 4, 2025
https://hackaday.com/2025/05/04/hackaday-links-may-4-2025/

By now, you’ve probably heard about Kosmos 482, a Soviet probe destined for Venus in 1972 that fell a bit short of the mark and stayed in Earth orbit for …read more (https://hackaday.com/2025/05/04/hackaday-links-may-4-2025/)

Train With Morse Master
https://hackaday.com/2025/05/04/train-with-morse-master/

Morse code can be daunting to learn when you’re new to the game, particularly if you need it to pass your desired radio license. However, these days, there are a …read more (https://hackaday.com/2025/05/04/train-with-morse-master/)

Lancing College Shares Critical Design Review for UK CanSat Entry
https://hackaday.com/2025/05/04/lancing-college-shares-critical-design-review-for-uk-cansat-entry/

A group of students from Lancing College in the UK have sent in their Critical Design Review (CDR) for their entry in the UK CanSat project. Per the competition guidelines …read more (https://hackaday.com/2025/05/04/lancing-college-shares-critical-design-review-for-uk-cansat-entry/)