this post was submitted on 17 Oct 2024
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Science Memes

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[–] ChaoticNeutralCzech 88 points 1 month ago* (last edited 1 month ago) (7 children)

Datasheet websites do that a lot. If it's PDF.js, Firefox's PDF viewer (or a fork of it), I just right-click to "Show only this frame" and it goes fullscreen. It might have shenanigans such as disabled printing but you can press Ctrl+Shift+E and reload to check network activity for what address the PDF is loaded from and save that.

The worse ones are PDFs that exist only for SEO and contain nothing but keywords and a link to a paywall.

[–] Thorry84@feddit.nl 35 points 1 month ago (5 children)

Finding datasheets and service manuals is a nightmare. So many websites claiming to have the right file, only to end up being a scam and not having any files. Having files they have no right to and are publicly available behind a pay wall. Having weird online viewers instead of just giving the file. Padding the file with extra pages of nonsense so they can claim more pages and a larger file size. Having the wrong file mislabeled. Etc. It goes on and on. And then there's the sites that redirect a thousand times and then crash the browser. I hope I didn't just get a virus or something.

All I want is to fix this old CRT from 1981 so I can enjoy it for a few more years, is that too much to ask? And back in those days they actually cared about repairability. Especially the services manuals with scope traces for the test points save so much time troubleshooting.

Archive.org is a good place luckily. If it isn't down because shit heads can't behave on the internet. As a species we really like to get in our own way all of the time.

And no I still haven't fixed up that CRT. It is working now after replacing two weirdly behaving transistors, a new power cord and a new power button (old one worked but didn't stay on unless you held it on). Replaced a few caps but most tested fine, good quality caps. Even the once I replaced were working, but marginal on the ESR. Cosmetics are also good, but there is still an intermittent fault with it losing horizontal size adjustment. It goes from fine and perfectly working to a little too narrow without any adjustment. 90% of the time it's fine, 10% of the time it's faulty and it switches random. I've been going mad tracing where the issue is, but I will fix it one day.

[–] ChaoticNeutralCzech 8 points 1 month ago

I assume datasheet websites just have pages for every combination of 3-12 alphanumerics to appear in search results, and then use shitty fuzzy string matching tactics to find "most relevant" items. It would help if they managed to extract package marking codes from datasheets so you can find SOT-23 parts by their 2-3 character codes, or whatever obscure system used by individual IC manufacturers. I think they have resources to make the experience way better but they prefer to turn high profits. Personally, I would not mind trying AI (not neccessarily a LLM) for the data extraction but I'd be cautious and only release it if it is decently reliable (but I know they wouldn't bother with that).

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