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Joined 7 months ago
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Cake day: August 15th, 2024

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  • I got a 1U rack server for free from a local business that was upgrading their entire fleet. Would’ve been e-waste otherwise, so they were happy to dump it off on me. I was excited to experiment with it.

    Until I got it home and found out it was as loud as a vacuum cleaner with all those fans. Oh, god no…

    I was living with my parents at the time, and they had a basement I could stick it in where its noise pollution was minimal. I mounted it up to a LackRack.

    Since moving out to a 1 bedroom apartment, I haven’t booted it. It’s just a 70 pound coffee table now. :/


  • I’m surprised I’ve yet to hear of a homebrew industry of completely cutting out the microcontrollers and soldering in a Pi or something to drive the raw display. I don’t predict it to be easy, but it doesn’t seem completely unobtainable?

    Flashing a custom bootloader would be even better, but I assume that hasn’t been done because they got that shit cryptographically locked down at the chip level.



  • There’s actually no digital audio involved anywhere in this process. It’s all analog.

    A magnetic tape cassette holds raw wave data of the sounds it records. Just like a vinyl record, except the groove is in the magnetic field instead of physically etched into the surface of the tape, and the needle is an electromagnet instead of, well, a needle.

    An audio cable using a standard 3.5mm jack also transmits raw wave data. It has to, because the electromagnetic pulses in the cable are what directly drive the electromagnets in whatever speakers they’re hooked up to. If it’s coming out of a digital player, the player has to convert the signal on its own using an onboard digital-to-analog converter (a DAC).

    The neat part is that since a tape deck read head is looking for an analog wave signal, and an analog wave signal is what an aux cable carries, the two are directly compatible with one another. If you actually crack one of these tape deck hacks open, you’ll find the whole thing is completely empty, save for the audio cable wires going directly to the write head that mimics the tape. Beyond that, there’s no conversion equipment, no circuit board, nothing. It’s a direct pass-through.

    The body of the thing is nothing more than an elaborate way to trip all the mechanisms in the tape deck to trick it into thinking it’s holding a valid cassette, while simply holding the write head fixed in the proper spot.

    I’m sure you already know all of this. I just think it’s really cool and I enjoy talking about it. Analog tech is amazing.


  • For anyone who was using K-9 wondering why Thunderbird looks no different, it’s because they aren’t different.

    They build both apps from the exact same codebase. Only difference between the two are the default color scheme, the branding icons, and the text strings of the application’s name. It’s literally just a choice of which brand skin you prefer.

    Which, honestly, kinda cool. A virtually zero-cost way to keep a few K-9 stans happy.



  • pixelscript@lemm.eetoMemes@lemmy.mlZen Z
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    7 months ago

    An analog clock is just three sets of loading bars with their ends glued together. You can tell geometrically what proportion of each division of time (day, hour, and minute) are spent and what proportion remains. You don’t even need the numbers.

    If you need stopwatch-level precision, sure, a digital display is superior. But how often do you need that? Most of what I need clocks for is, “Oh, it’s about a quarter to noon, I have a lunch appointment to get to”.

    It is my personal preference to visually intuit that the clock hands are roughly separating the hour into 3/4 spent and 1/4 remaining and use that to know how much time I have left to the hour, rather than read the symbols “42” on the display and manually do the mental gymnastics of “well that’s basically 45, which is three quarters of the way to 60 minutes”.

    I’ll admit this benefit is marginal.