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techknight

@thetechknight.bsky.social

40yo Aspie | He/Him | Single/looking | ISTJ | Electronics Technician and Engineer | Embedded Dev | Severe Weather nut | Originally from Ohio and now in NC | Discord: thetechknight

1,379 Followers  |  276 Following  |  1,632 Posts  |  Joined: 16.08.2023
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Posts by techknight (@thetechknight.bsky.social)

Interesting... it looked like the old Microchip logo.

27.02.2026 02:16 — 👍 2    🔁 0    💬 0    📌 0
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Can anyone identify this IC? I can't find anything

27.02.2026 01:47 — 👍 7    🔁 4    💬 1    📌 0
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Pour one out for this one. This might be the worst Toshiba I've ever seen. Poor J3100SS

27.02.2026 00:27 — 👍 5    🔁 0    💬 1    📌 0

Who knows what was installed by the previous owner. They wernt done!

22.02.2026 21:16 — 👍 0    🔁 0    💬 0    📌 0
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Holy shit it works. I somehow managed to fix this thing

22.02.2026 19:42 — 👍 14    🔁 0    💬 2    📌 0
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Next thing I had to do was fix the ribbon cable because it had been torn

22.02.2026 19:41 — 👍 4    🔁 0    💬 2    📌 0
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All right well time for experimentation with educated guesses on capacitor values.. let's see if the switcher comes alive

22.02.2026 19:41 — 👍 3    🔁 0    💬 1    📌 0
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I was hoping maybe the switching power supply circuit could clue me into the values but I can't find the IC on that one either

22.02.2026 15:30 — 👍 3    🔁 0    💬 1    📌 0
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Yeah this is a basket case.. someone yanked the capacitors off of the panel and I don't know what they were originally, I can't find data anywhere. The panel is a work of art though

22.02.2026 15:01 — 👍 4    🔁 0    💬 1    📌 0
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Unfortunately it looks like I've inherited someone else's project

22.02.2026 15:00 — 👍 3    🔁 0    💬 1    📌 0
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Another one fixed! The CRT is a bit weak unfortunately

21.02.2026 18:08 — 👍 21    🔁 2    💬 1    📌 0
Introducing ATAboy!  An Open Source IDE USB Host Bridge
YouTube video by JJ's Messy Bench Introducing ATAboy! An Open Source IDE USB Host Bridge

Wow... Finally something like this comes out, its nice. having a USB to IDE device that supports vintage drives is handy www.youtube.com/watch?v=XUmx...

21.02.2026 09:49 — 👍 9    🔁 0    💬 0    📌 0

I feel like though if someone reverse engineers the 3.5" flux dumps, i bet a 5.25 version could be recreated.

20.02.2026 18:30 — 👍 1    🔁 0    💬 0    📌 0

Oh yeah that one is nice. I was going through the book for this one, and itll give you tons of output. RPM, Azimuth error, eccentricity errors, etc.

20.02.2026 18:30 — 👍 1    🔁 0    💬 0    📌 0

Dime a dozen until you get into laptops where it really matters

20.02.2026 16:28 — 👍 2    🔁 0    💬 1    📌 0

Probably. First though youd have to write the flux image to disks with a known good aligned drive.

20.02.2026 13:43 — 👍 2    🔁 0    💬 0    📌 0
Preview
Accurite Track Test Disk 2 : accurite : Free Download, Borrow, and Streaming : Internet Archive Greaseweasle disk image, program file, and manual for the Accurite Disk Probe floppy drive testing and allignment tool. Write the disk image to disk and run...

Floppy Drive alignment tool just dropped: archive.org/details/accu...

20.02.2026 13:41 — 👍 19    🔁 3    💬 3    📌 0

yeah these were only released and sold in japan, I dont believe they ever made a notebook-sized plasma laptop over here except the T4400

19.02.2026 22:52 — 👍 3    🔁 0    💬 0    📌 0
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Sadly however, the HDD was yanked and its proprietary....

19.02.2026 22:50 — 👍 1    🔁 0    💬 1    📌 0
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I got yet another cool toy. Toshiba notebook that has a plasma display panel!

19.02.2026 22:50 — 👍 57    🔁 4    💬 4    📌 0

This is hilarious 😂

17.02.2026 13:03 — 👍 11    🔁 0    💬 1    📌 0

I wish I had the insides. Only the board and power supply was shipped to me for repair

16.02.2026 10:08 — 👍 3    🔁 0    💬 1    📌 0

They're fairly common but they also vary so you'd have to look at your specific board unfortunately

16.02.2026 02:48 — 👍 0    🔁 0    💬 1    📌 0
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Fixed another machine today! An XT clone, branded as an EDS. Needed all the tantalums replaced and RIFAs pulled

16.02.2026 01:02 — 👍 22    🔁 0    💬 2    📌 0
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Fixed another machine today! An XT clone, branded as an EDS. Needed all the tantalums replaced and RIFAs pulled

16.02.2026 01:00 — 👍 3    🔁 0    💬 0    📌 0

Yeah he's just waiting for the right moment. The costs came down from China and it's astronomical, so roi has to be determined

14.02.2026 12:00 — 👍 2    🔁 0    💬 0    📌 0

Yep they absolutely are, even when new. I made a mechanical version that works fine and even redesigned it to use a slightly more modern keyswitch, but i sold the design to MacEffects.

14.02.2026 02:37 — 👍 5    🔁 0    💬 1    📌 0

This one has a 230 board as well! The original 210 board has a bad SC chip, preventing full system initialization.

14.02.2026 02:21 — 👍 1    🔁 0    💬 0    📌 0
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Finally fixed the PowerBook Duo! Wouldn't spin the HDD or boot, and turns out a MOSFET actually went open! I haven't encountered that one before, and it wasn't a visible fault either.

14.02.2026 02:09 — 👍 34    🔁 3    💬 4    📌 1
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If youtube could stop breaking things, that'd be greeeaaaat

14.02.2026 01:20 — 👍 7    🔁 0    💬 0    📌 0