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cmb@cathode.church

Adventures of Business CatgirlI'm a cat who accidentally builds electronics now for fun and (again) for survival in a capitalist society.Especially interested in all things precisions analog electronics *baps the ppms*.Feel free to follow, acc is just locked because of spam follows.

Posts

Post #4489281
oh huh, the spice-crypt project is gone without any notice as to why... there&#39;s still mirrors and debian has it but so strange.
Post #4489280
one day i need to take inventory of my voltage references, but not today *puts ref54 sample baggie into drawer* *finds ref70, ref80, adr1001 while looking quickly*
Post #4489279
TIL i can just type &quot;−2=−1.22×(x+500k)/500k&quot; in qalculate to solve for feedback resistors. now i finally don&#39;t need to shuffle the equation around in my head anymore :3
Post #4489278
me when a project has &lt;5 power rails: i don’t understand why people use power modules, it’s so easy to do me when a project escalates again: what do you mean 11 rails, fuck this shit. i wish there was a module for this…
Post #4489277
hey #electronics #lazyweb, does anyone know a *negative* LDO that has sub-10µV rms output noise and is not from ADI? i&#39;m looking for parts that aren&#39;t as expensive as the analog ones and closest thing i got is TPS7A30 with 15µV rms
Post #2128465
saw a zirconium endmill which makes me think of the beryllium foil holder
Post #1700835
hey #electronics fedi, anyone wants to do me a solid and glance at the Glasgow Interface Explorer revD design at https://codeberg.org/tachiniererin/glasgow_revD ? it&#39;s just a prototype pass right now and i know the layout and routing is far from optimal, i&#39;m just trying to find any show-stoppers so that we can start with testing. edit: i&#39;ve gotten enough findings by people in the meantime to warrant enough changes and a re-layout, thank you all! :boost_requested:
Post #895702
the question as old as PCB design: &quot;will it fit or won&#39;t it&quot;
Post #895701
let&#39;s see if this sense resistor layout (https://www.analog.com/en/resources/analog-dialogue/articles/optimize-high-current-sensing-accuracy.html) makes a difference with generic current sense resistors
Post #895700
dismantling an old semiconductor research lab is a weird experience. old photos and documents from before the internet existed that make you feel strangely nostalgic next to a refrigerator which has kept toxic chemicals at temperature for the last 30 years. that and shitloads of vacuum fittings.
Post #895699
Self-OH: &quot;that&#39;s LLM stealthing&quot;
Post #895698
„born to shit, forced to sputter“ lives rent free in my head and i hate it (was on the topic of sputter coater)
Post #883628
„honey, i bought a new deep fryer, it even came with free oil!“
Post #818129
sometimes you just gotta push through and face the fact that it&#39;s not going to be easy
Post #806648
doing @fafo logistics, looking at what stuff from the lab we should take. big ass bottle of carbon-tet in the corner. yeah, not taking that one. edit: sorry, false alarm, it’s the wrong tet. tetrafluoride not tetrachloride.