Gregory's Server
|
New Standards for Mobile Graphics (2006) https://www.itu.int/ITU-T/worksem/h325/200605/presentations/s0p5-pulli.pdf #retrocomputing #retrogaming Found a "potential" solution for my high-voltage power supply - just use an off-the-shelf capacitor charger, then abuse a Power-over-Ethernet transformer and run it in reverse, turning it into a kilovolt generator... None of the vendor-specified transformers are rated above 1 kV so I initially did not consider this idea. But after some hunting, I found a PoE transformer with seemingly workable specs. #electronics It still has problems. The primary inductance is too low, datasheet says this breaks LT3750's primary-side voltage regulation, the output will rise uncontrollably. I have an external secondary regulation so it's still going to work to a degree. Let's see if I can find a better transformer. If I cannot, for a quick and dirty test, I'll just add a gas discharge tube crowbar as the regulation failure protection... #electronics Q: Which tech publisher always carefully checks all their books and you almost never see an error? "damage of electronic systems are often caused by electrical overstresses such as lightning, electromagnetic pulses from nuclear weapons, and switching of reactive loads.""often caused by [...] electromagnetic pulses from nuclear weapons" I hope not...
Due to the near-opposite meanings [of "open" and "close"] relating to fluid flow and electrical components, these usages are deprecated in safety-critical instructions, with the words to on or to off preferred, so instead of Open valve A; open switch B" use Turn valve A to ON; turn switch B to OFF.#TIL
 @niconiconi empty reply, mobile pleroma fe moment
but yeah, it's dumb how these ae so similar, i mean both make sense in their context but 💀 Now I'm getting a really cursed bug here. I uploaded a correct circuit diagram but it likely triggers a bug in librsvg used by Mediawiki so the circuit renders incorrectly, the capacitor just disappears. And it's only triggered by some image sizes, including the default one but not the preview one... ​:blobcatfacepalm:​ It turns out that SVG rendering is so buggy that Wikipedia even has a special SVG help desk. ​:woozy_baa:​ https://en.wikipedia.org/wiki/Wikipedia:SVG_help Galaxy brain: Wikipedia as its own bug tracker. https://commons.wikimedia.org/wiki/File:Incorrect_path_error_handling.svg |