Biasing Transistors with Current Sources
https://hackaday.com/2025/04/21/biasing-transistors-with-current-sources/

Over on his YouTube channel [Aaron Danner] explains biasing transistors with current sources in the 29th video of his Transistors Series. In this video, he shows how to replace a …read more (https://hackaday.com/2025/04/21/biasing-transistors-with-current-sources/)

Restoration of Six-Player Arcade Game From the Early 90s
https://hackaday.com/2025/04/21/restoration-of-six-player-arcade-game-from-the-early-90s/

Although the video game crash of the mid-80s caused a major decline in arcades from their peak popularity, the industry didn’t completely die off. In fact, there was a revival …read more (https://hackaday.com/2025/04/21/restoration-of-six-player-arcade-game-from-the-early-90s/)

Keebin’ with Kristina: the One with the Part Picker
https://hackaday.com/2025/04/21/keebin-with-kristina-the-one-with-the-part-picker/

If you do a lot of 3D computer work, I hear a Spacemouse is indispensable. So why not build a keyboard around it and make it a mouse-cropad? That’s exactly …read more (https://hackaday.com/2025/04/21/keebin-with-kristina-the-one-with-the-part-picker/)

Remembering UCSD p-System, the Pascal Virtual Machine
https://hackaday.com/2025/04/21/remembering-ucsd-p-system-the-pascal-virtual-machine/

Long before the Java Virtual Machine (JVM) was said to take the world by storm, the p-System  (pseudo-system, or virtual machine) developed at the University of California, San Diego (UCSD) …read more (https://hackaday.com/2025/04/21/remembering-ucsd-p-system-the-pascal-virtual-machine/)

Trekulator: A Reproduction of the 1977 Star Trek Themed Calculator
https://hackaday.com/2025/04/21/trekulator-a-reproduction-of-the-1977-star-trek-themed-calculator/

A recent project over on Hackaday.io from [Michael Gardi] is Trekulator – Where No Maker Has Gone Before. This is a fun build and [Michael] has done a very good …read more (https://hackaday.com/2025/04/21/trekulator-a-reproduction-of-the-1977-star-trek-themed-calculator/)

Jolly Wrencher Down to the Micron
https://hackaday.com/2025/04/21/jolly-wrencher-down-to-the-micron/

RepRap was the origin of pushing hobby 3D printing boundaries, and here we see a RepRap scaled down to the smallest detail. [Vik Olliver] over at the RepRap blog has …read more (https://hackaday.com/2025/04/21/jolly-wrencher-down-to-the-micron/)

PoX: Super-Fast Graphene-Based Flash Memory
https://hackaday.com/2025/04/21/pox-super-fast-graphene-based-flash-memory/