What's "root mean square" voltage, and how do we calculate it for sine waves?
Bonus: featuring precision mathematical surgery!
lcamtuf.coredump.cx/blog/rms/
12.03.2025 04:39
👍 11
🔁 2
💬 0
📌 0
What's "root mean square" voltage, and how do we calculate it for sine waves?
Bonus: featuring precision mathematical surgery!
lcamtuf.coredump.cx/blog/rms/
I had (have?) one of those. Ah the nostalgia
Tektronix 213
Mess of vacuum parts and electronics tools scattered across a desk.
It's dead-dead. This Dyson motorhead broke shortly after we bought it. Dyson warrantied it and sent a new one so here's the broken one. Input fuse was blown but even after replacing that, the power rail is still shorted out. Nothing else obviously blown. Board has conformal coating so hard to debug.
Small metal can of DAP Plastic Wood showing some small holes in the side of the can
One of my cans of Plastic Wood rusted through. It's not that old but I guess it's pretty strong stuff.
I think they are two teams technically. The video player uses your phone's media player (looks like iOS) and the photo viewer is Bluesky's design. I guess they could try to mimic the user's operating system design for the photo viewer to help with your request.
Yup 👍
I suppose I qualify
My Game Boy Slideshow ROM Generator is now available at there.oughta.be/a/game-boy-s...
#gameboy #retrogaming
an electrical transmission tower with some insulators and wires. some insulators are not where they should be. the bottom right of the photo has the date "11.11.2018"
this electrical transmission tower has a little problem. can you spot it? actually, it's not a small problem--it cost us 16.65 *billion* dollars and caused the deaths of 85 people.
Angled wood pieces hold a laptop against a shelf. Surrounding it are electronics tools and miscellaneous junk
Made a little holder so I can slot my laptop in to charge or get it out of the way when I’m working.
Something to hold my festival wristbands
Various clamps holding together 2 3d printed parts to form a dinosaur
Microjig to the rescue!
If you'd like to see USB device access in VS Code (ex. for programming and debugging,) upvote this issue.
github.com/microsoft/vs...
Some selections from the now-available ebook The Second Pilgrimage, if you’re curious what you can expect
My white and brown dog laying on the carpet while a spider plant is draped over her covering her in plantlets.
My large Philodendron Pluto plant hitting the ceiling and extending out on all sides in my bedroom.
Emptying the room meant moving my plants so my dog got to experience living inside a spider plant and my Philodendron Pluto is really unmanageable.
Small empty bedroom with new laminate flooring installed that looks like wood
First room complete. Started with the small squarish room. Only gets more difficult from here.
Three year old discolored and cracked iPhone 13 mini leather phone case next to a brand new phone case detailing the differences
Over three years later, it was time to replace my phone case.
Is this Fancade?
Installed the replacement.
Loose electronic component sitting on the pads where it belonged. There is solder on the pads and the part’s legs.
Bought a garage door opener and it wouldn’t turn on. Could hear a loose part inside when I shook it. This part has solder on it but was not connected. I pressed it into place and it powered on. If it wasn’t brand new I would’ve soldered it myself but I have no idea how it made it out of the factory.
There is a game about those games but maybe not that particular one. store.steampowered.com/app/2348100/...
Vacuum with 3D printed adapters that hold the attachments
Close up of the attachments installed on the vacuum
Gotta love 3D printing. Found these designs online and was able to modify the vacuum so it could actually hold the pieces.
