After we last saw [David Lovett] of [Usagi Electric], he was knee-deep in trying to fix a DEC PDP-11/03 power supply, which fortunately led to a fixed PSU and a …read more (https://hackaday.com/2024/01/22/fixing-a-pdp-11-03-power-supply-is-easy-when-you-understand-it/)

X-Ray Investigations Hack Chat
https://hackaday.com/2024/01/22/x-ray-investigations-hack-chat/

Join us on Wednesday, January 24 at noon Pacific for the X-Ray Investigation Hack Chat with Ahron Wayne! It’s hard to imagine a world where we didn’t figure out how …read more (https://hackaday.com/2024/01/22/x-ray-investigations-hack-chat/)

Switching Regulators For Dummies
https://hackaday.com/2024/01/22/switching-regulators-for-dummies/

We often use linear regulators in our designs. They are cheap and simple – you put the regulator chip itself on the board, add two capacitors, and get a voltage. …read more (https://hackaday.com/2024/01/22/switching-regulators-for-dummies/)

Inside a Fake LM358
https://hackaday.com/2024/01/22/inside-a-fake-lm358/

[IMSAI Guy] got some fake LM358 op-amps. Uncharacteristically, these chips actually performed well even though they didn’t act like LM358s. [IMSAI Guy] did a video about the fake chips and …read more (https://hackaday.com/2024/01/22/inside-a-fake-lm358/)

Read QR Codes without a Computer
https://hackaday.com/2024/01/22/read-qr-codes-without-a-computer/

Did you ever watch Star Wars and wondered how people understood what R2D2 was saying? Maybe [Luke Skywalker] would enjoy learning to decode QR Codes by hand, too. While it …read more (https://hackaday.com/2024/01/22/read-qr-codes-without-a-computer/)

X-Ray CT Scanners From eBay, Brought Back to Life
https://hackaday.com/2024/01/22/x-ray-ct-scanners-from-ebay-brought-back-to-life/

If you have ever wondered what goes into repairing and refurbishing an X-ray Computed Tomography (CT) scanner, then don’t miss [Ahron Wayne]’s comprehensive project page on doing exactly that. He …read more (https://hackaday.com/2024/01/22/x-ray-ct-scanners-from-ebay-brought-back-to-life/)

Kites Fill Electricity Generation Gaps
https://hackaday.com/2024/01/22/kites-fill-electricity-generation-gaps/

Looking at a wind turbine from first principles, it’s essentially a set of wings that generate lift in much the same way an airplane wing does. Putting the wings on …read more (https://hackaday.com/2024/01/22/kites-fill-electricity-generation-gaps/)

Writing And Running Atari 2600 Games In Your Browser
https://hackaday.com/2024/01/22/writing-and-running-atari-2600-games-in-your-browser/