When a Record Player Doesn’t Work Due to Solid State Grease
https://hackaday.com/2025/07/20/when-a-record-player-doesnt-work-due-to-solid-state-grease/

Normally, mechanical devices like record players move smoothly, with well-greased contact surfaces enabling the tone arm to automatically move, the multi-record mechanism to drop down a fresh disc, and the …read more (https://hackaday.com/2025/07/20/when-a-record-player-doesnt-work-due-to-solid-state-grease/)

Designing an Open Source Multimeter: the HydraMeter
https://hackaday.com/2025/07/20/designing-an-open-source-multimeter-the-hydrameter/

Our hacker [John Duffy] wrote in to let us know about a video he put together to explain the design of his open-source multimeter, the HydraMeter. If you’re interested in …read more (https://hackaday.com/2025/07/20/designing-an-open-source-multimeter-the-hydrameter/)

Hackaday Links: July 20, 2025
https://hackaday.com/2025/07/20/hackaday-links-july-20-2025/

In the relatively short time that the James Webb Space Telescope has been operational, there’s seemingly no end to its list of accomplishments. And if you’re like us, you were …read more (https://hackaday.com/2025/07/20/hackaday-links-july-20-2025/)

Remembering Chiptunes, the Demoscene and the Illegal Music of Keygens
https://hackaday.com/2025/07/20/remembering-chiptunes-the-demoscene-and-the-illegal-music-of-keygens/

We loved keygens back in the day. Our lawyers advise us to clarify that it’s because of the demo-scene style music embedded in them, not because we used them for …read more (https://hackaday.com/2025/07/20/remembering-chiptunes-the-demoscene-and-the-illegal-music-of-keygens/)

Researching Glow-Powder Left a few Scars
https://hackaday.com/2025/07/20/researching-glow-powder-left-a-few-scars/

Content warning: Human alteration and scalpels. General warning: We are not speaking as doctors. Or lawyers. If you watch sci-fi, you probably do not have to think hard to conjure …read more (https://hackaday.com/2025/07/20/researching-glow-powder-left-a-few-scars/)

Reverse Engineering a ‘Tony’ 6502-based Mini Arcade Machine
https://hackaday.com/2025/07/21/reverse-engineering-a-tony-6502-based-mini-arcade-machine/

For some reason, people are really into tiny arcade machines that basically require you to ruin your hands and eyes in order to play on them. That said, unlike the …read more (https://hackaday.com/2025/07/21/reverse-engineering-a-tony-6502-based-mini-arcade-machine/)

Bearing Witness: Measuring the Wobbles in Rotary Build
https://hackaday.com/2025/07/21/bearing-witness-measuring-the-wobbles-in-rotary-build/