@foone@digipres.club avatar

foone

@foone@digipres.club

Hardware / software necromancer, collector of Weird Stuff, maker of Death Generators. (she/they🏳️‍⚧️)

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foone, to random
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m.2 bubble memory module

foone, to random
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this hasn't happened in a long time (since I basically stopped using ebay) but it's good to know that it will still randomly go "hey, enough computer bullshit... you need a new dress!"

foone,
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@ids1024 I'm legitimately working on a MIDI midi dress. It's midi length but can also play synthesized music

foone, to random
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Wait a minute. I don't have a cat!

Why is there a cat sitting on my headphones and CRT and controller and Teensy?

foone,
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@DrewNaylor I see the resemblance!

foone, to random
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CRT repair question:
So I need to clean the bezel of this terminal monitor, as it's in terrible shape. It's screwed onto this metal cage surrounding the actual tube, and seems to be clipped onto the tension band.

Is it save to remove this so I can clean the bezel separate from the tube & frame? I'm worried that because it's clipped onto the tension band, It might cause the tube to implode if I unscrew it from the plastic.

image/png

foone,
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I don't think it should be a problem, but I figured I should ask, this is a tube from 1989, it might be a tad weak by this point

foone,
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@oruga oh yeah, this thing has been discharged for a week+ by now. I used the insulated screwdriver on the anode and everything

foone, to random
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I wish I could have an accounting of how much of my life I've spent squinting at datasheets scanned at 1bit color and 75 DPI

foone, to random
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Arg. I'm cleaning a keyboard but look at this damn blotch! it won't rub off, so I gotta hit it with a melamine sponge, but it's SO CLOSE to the lettering. I gotta be REAL CAREFUL

foone,
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And reassembled the caps.

Looking good!

foone,
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@willyyam that's what I did! that's why there's such a clean line there

foone,
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@jlsksr everything on this board is Wyse-branded, but maybe they bought keycaps from somewhere that provided keycaps to Toshiba? it wouldn't surprise me

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The cable is REAL nasty, though.

foone,
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okay it's cleaned up, but it's now suffering extreme tendril perversion.

foone,
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the cable has been unperverted

foone, to random
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PSA: We're two days to a possible US government shutdown.

That means NOW is the best time to get out your Blonder-Tongues and other NTSC broadcasting equipment, get them connected, and ready to go.

That way you'll be able to begin broadcasting unlicensed pirate TV the very moment the FCC goes on hiatus

foone,
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@fozztexx how dare you
I have at least 4 devices capable of receiving analog TV broadcasts in my office alone!

foone,
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@graphite @mimic although I'd like to say, as someone who has worked for two organizations described as "barely functioning anarchies" (the US government and Google), and also knows some anarchists: calling anything either of those places does "anarchy" is an insult to anarchy

foone,
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@astra the US government is nearing a shutdown over budget issues again. it happens

foone, to random
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The board is looking corroded under the capacitor, and it's got gunk coming out the top and button, but... it tests perfectly fine.
huh.

(I'm still replacing it, sure, but I was expecting this cap to read as FUCKT on the little LCD)

A grungy 2200uF capacitor with brown gunk all around the top, next to a capacitor meter that's reading 2025.5uF

foone,
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okay I wired up a teensy microcontroller to the +5/GND/DATA pins.

so now I can determine... if the 1 key on the numpad is down. that's all.

progress, technically?

foone,
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okay I can manually advance through the matrix by sending my teensy an "n" character. So I can confirm I can send pulses of the correct length (or close enough)

foone,
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I have it scanning but I accidentally made it only update the keys the first time they're pressed.

So every key works, but... only once.

foone,
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I'm currently pulling a reverse CSI:

I'm using two keyboards at once

foone,
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Okay I've tested all the keys. They work just fine... except for the "C" key.

Fortunately these are off the shelf Cherry Blacks, so I can just buy a brand new one, a mere 32 years later

foone,
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I can't easily make an Actual Keyboard out of this with the parts I have on hand: I'm using a Teensy 2.0 because I need 5v support, but I can't make that into a keyboard because I've run out of RAM in my program.

foone,
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but at least this lets me confirm my keyboard works, and gives me the beginning for my potential future project of a Wyse Keyboard Protocol Translator

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