guys, this bullshit needs to stop. if you find a bug, share your findings (and file a github issue) instead of trying to make a fast buck. technically this also violates the open source license which requires you to distribute the source for any modifications you make to the original.
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@tubetime The description looks like eBay AI generated nonsense. This means I'm also not sure if it actually has a bugfix. @tubetime It's a fairly niche hobby, why ruin your reputation in the community for such a low amount of money?
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playing around with Inkscape and my HP pen plotter. it's not really going that well; Inkscape has severe issues with locating the origin, scaling factors, and can't handle things like crosshatching. these are problems that were solved 40 years ago.
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@tubetime as someone who has put a lot of hours into programmatically converting Inkscape-generated vector art into other formats, sometimes I can't tell whether Inkscape is underdeveloped or very opinionated. I love it. It's an amazing piece of software for $0. Unfortunately, that also means everyone uses it for everything, and it's not great at everything.
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tonight's mini project: I built up this adapter board for testing IBM RAM chips in their odd little SLT package
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@tubetime want to see some chip reverse engineering? tune in to my Twitch stream: https://www.twitch.tv/tubetimeus
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the power supply in my PS/2 model 80 stopped working, so it's time to remove it and fix it. three screws and it even has a nice little handle in the form of a zip tie. got a cracked 8042 on this IBM PS/2 model 80 type 2 motherboard, but I'm going to try to dump it anyway! 🧵
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I'm a software person so I might be entirely wrong, but how could this be a RAM chip with just 16 pins? If it's 256 kbit like others are saying, you'd need 15 address lines, 8 data lines, power, ground, chip select, and read/write signals. So at least 27 pins. Unless it uses some kind of serial protocol, but is that even a thing with RAM chips? @tubetime well, it’s not a dirty word (or, indeed, a dirty bird). Sorry, I always think of that song every time I see the word eagle. I’ll show myself out. The F-4 fighter plane used an attitude indicator to show the plane's orientation. The ball in this indicator rotates in three axes. How does that work? We took the indicator apart to find out.
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f-4 was an interesting plane. when i was in the air force, pilots used to joke that the f-4 was living proof of the rule of aerodynamics that given sufficient thrust, even a brick could fly. downside was that when the f-4 lost thrust, it reverted to brick. but they had a long and pretty solid life span in service.
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Here is an IC mystery @bitsavers They look too narrow, too. I'm getting strong "soviet bloc" package vibes from these. CEMI and TESLA had those long divots. I reckon these are re-marked parts. '65 seems too early. @bitsavers I have no relevant knowledge knowledge but I wonder if this could be from a time when prices where high and there was enough margin to pay the higher manufacturing cost. The 3D logo would flaunt the technical advances and make them harder to clone.
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@tubetime Wow. Using a 2.5MB yes MB Linux kernel. I didn't think you could config Linux down that small. Wow. |
@tubetime Looks like a HDD controller on the picture. 😃
@tubetime thanks for answering questions ! Is this going to be on githubs or such ?
and we're live again, come check it out!